Neuroscience. 신경계 (nervous system) Ch 1: 신경조직
|
|
- Estella Dean
- 5 years ago
- Views:
Transcription
1 Neuroscience Ch 1: 신경조직 충남의대해부학교실김동운 신경계 (nervous system) 중추신경계 (central nervous system, CNS) 뇌 (brain), 척수 (spinal cord) 말초신경계 (peripheral nervous system, PNS) 뇌신경 (cranial nerve), 척수신경 (spinal nerve)] 자율신경계 (autonomic nervous system, ANS) 교감신경계 (symphathetic nervous system) 부교감신경계 (parasymphathetic nervous system) 1
2 신경계통의구성 중추신경계 (central nervous system, CNS) 뇌 (brain) + 척수 (spinal cord) CNS 의보호 Skull ( 머리뼈 ) 와 vertebral column ( 척주 ) Meninges ( 뇌척수막 ) Cerebrospinal fluid (CSF, 뇌척수액 ) 구성 Neuron ( 신경세포 ) + neuroglia ( 신경아교세포 ) Gray matter ( 회색질 ), white matter ( 백색질 ) Gray matter: cell body 위주 White matter: nerve fiber ( 신경섬유, 주로 axon) 위주 Myelin sheath ( 말이집, 수초 ) 의지질성분이반사되어흰빛을띈다. 말초신경계 (peripheral Nervous system, PNS) Cranial nerve ( 뇌신경, 12 쌍 ) + spinal nerve ( 척수신경, 31 쌍 ) Nerve fiber 의다발 (bundle) CNS 의위치에관한용어 2
3 The major components of the nervous system and their functional relationships 신경조직 (nervous tissue) 신경세포 (neuron) Sensory, motor, interneuron 신경아교세포 (neuroglia) 별아교세포 (astrocyte) 희소돌기아교세포 (oligodendrocyte) 미세아교세포 (microglia) 뇌실막세포 (ependymal cell) 슈반세포 (Schwann cell) 신경절아교세포 ( 위성세포, 피막세포, satellite cell, capsule cell) 3
4 Neuron 신경계에서자극을받아들이고정보를처리하여효과기에전달하여반응을일으킨다 자극의수용 (excitability, 흥분성 ) & 신경흥분의전달 (conductivity, 전도성 ) 세포체 (cell body) 핵 핵주위부 (perikaryon) 세포돌기 (cell process) 축삭 (axon) 가지돌기 (dendrite) Nissle body Axon hillock Myelin sheath Neuromuscular junction 4
5 신경세포의종류 Unipolar: DRG (Dorsal root ganglion) Bipolar: Bipolar neuron in retina, cochlear gl. 신경세포의종류 Golgi type I neuron Golgi type II neuron 5
6 @ vary in size and shape ; - small granular cells of the cerebellar cortex (10 um) - Betz cells of the motor cortex and anterior horn cell neuron in the spinal cord (50 um) 6
7 Nucleus ; 핵은둥글고크며대부분세포체의중간에위치 Chromatin type Euchromatin: Active mrna transcription Barr body 그림 2-5 Nucleolus Active rrna transcription Barr body: inactive X chromosome in female Barr s the Human Nervous System An Anatomical Viewpoint, 10 th Ed. 7
8 Nissl body abundant, parallally arranged rer cisterna active site of protein (polypeptide) synthesis Basophilic: toluidine blue Chromatolysis no protein synthesizing assembly in axon Golgi apparatus: transport vesicle Mitochondria: cell body, cell process, axon Nissl body 8
9 Cresyl violet Cajal s silver nitrate staining 그림 2-2 그림 2-3 Nissl substance: rer Axon Nucleolus Coiled body (Collin) Cytoskeleton Microtubule: microtubule (MAP) Actin filament: microfilament Intermediate filament: Neurofilament I. II: Keratin III: Vimentin, desmin, GFAP IV: Nestin V: nuclear lamin NF Tau Tau protein that stabilized microtubule Neurofibrils Any of the long, thin, microscopic fibrils that run through the body of a neuron and extend into the axon and dendrites. Neurofibrillary tangles Aggregates of hyperphosphorylated tau protein that are most commonly knows as a primary marker of AD. 9
10 Distinctive arrangements of cytoskeletal elements in neurons A: Tubulin: (G) cell body, axon, dendrites Tau: (R) microtubule associated protein axon B: Hippocampal neuron actin: (R) growing tips of axonal & dendritic processes C: Epithelial cells actin: (R), most of cell body D: Astrocytes actin: (R), fibrillar bundle E, F: Neuron, tubulin (G), Processes actin (R), dendritic spine G: non-neuronal cells The major features of neurons visualized with microscopy 10
11 손상에대한신경세포의병리학적반응 (reactions of neurons to injury) 1) 급성신경세포손상 (acute neuronal injury--red neuron ; 적색신경세포 ) - causes (1) hypoxia/ischemia (2) infection (3) toxin - morphologic features (1) shrinkage (angularity) of the cell body (2) pyknosis of the nucleus (3) disappearance of the nucleolus (4) intense eosinophilia of the cytoplasm (5) loss of Nissl substance - evident with H&E at about hrs after insult 2) 아급성및만성신경세포손상 (subacute and chronic neuronal injury = degeneration; 변성 ) * trans-synaptic degeneration 3) 축삭반응 (axonal reaction) 4) neuronal inclusions and intracytoplasmic deposits (1) viral infections (2) Lewy bodies in PD, Neurofibrillary tangles in AD Acute neuronal injury: Neurons are vulnerable to cytotoxic stress. In acute neuronal injury, the cell shrinks, cytoplasm becomes deeply eosinophilic and nucleus appears pyknotic the so called red dead neuron. In acute hypoxic encephalopathy, these changes are frequently observed in the cortex (layers III,V), hippocampus (CA1) and cerebellar Purkinje layer Pyknosis, or karyopyknosis, is the irreversible condensation of chromatin in the nucleus of a cell undergoing necrosis or apoptosis. 11
12 Chromatolysis ( 염색질용해, axonal reaction) ; When the axon of a neuron is cut or damaged, 1. The cell body swells 2. The Nissl bodies disperse and move peripherally 3. The nucleus is displaced peripherally in the cell Pigment Lipofuscin melanin 12
13 Cell processes (neurites) Dendrite Dedritic spine ( 가시돌기가시 ) Mental retardation Spines and the strucutural basis of memory William Greenough Synaptoneurosome Polyribosome below synapses in dendritic spines Fragile X mental retardation protein (FMRP) Fragile X syndrome It was worth the effort. Axon Axon hillock: nissl body (X) 분지양상 : 축삭곁가지 (axon collateral) 종말가지 (telodendron) Boutons terminal ( 신경종말, 종말단추 ) 축삭의형질막 : axolemma 축삭의세포질 : axoplasma, Nissl body, golgi (X) Initial segment: action potential immunohistochemical markers ; neurofilament protein (NF), neuron specific enolase (NSE), synaptophysin NeuN 13
14 Axon vs. dendrite Neuroglia ( 신경아교세포 ) Astrocyte protoplasmic astrocyte fibrous astrocyte Oligodendrocyte perineuronal satellite cell interfascicular cell Microglia Ependymal Cell Schwann Cell in peripheral nerve & ganglion Capsular (Satellite) Cell in ganglion 14
15 Astrocyte ( 별아교세포 ) Physical support for neurons & Energy provision with Glucose uptake Guiding for migratory neuron Brain-blood barrier (BBB): regulation of blood flow Homeostasis of ions (K) and transmitters (Glu, GABA) Regulation of synapse function & neural activity Neuronal progenitor from radial glia 15
16 human astrocytes are larger and more complex than rodent and other primates Heterogeinity of human astrocyte (1) Protoplasmic ; mostly in gray matter, branched process (2) Fibrous ; mostly in white matter, long-thin process (3) Radial astrocyte (glia) (4) Perivascular or Marginal astrocyte: pia mater (5) Velate astrocyte: cerebellum (6) Muller cells: retina (7) Bergmann glia: cerebellum (8) Ependymal cells 16
17 Astrocytes are closely related to cerebral blood vessels and synapses Nature Neuroscience Tripartite Synapse - Considered a physical barrier to restrict spill over and diffusion of released molecules to ECS. - Position of relevance to their functions. (Araque et al., TINS 22 (1999)) Fellin et al., Physiology 21, 208 (2006) 17
18 Astrocytic reactions to injury Gliosis (=astrogliosis, reactive astrocyte, astrocyte activation) ; the most important histopathologic indicator of CNS injury Changing the molecular expression Changing the morphology Neural protection and repair by regulation of inflammation Scar formation Rosenthal fibers ; eosinophilic, thick, elongated structure in the astrocytic process - found in a. long standing progressive gliosis b. pilocytic astrocytoma Brain inflammation and gliosis 18
19 Radial glial cell Specialized astrocyte Important during development of the CNS Provide pathways for neuronal growth and targeting In adult Muller cell: retina Bergmann glia: cerebellum Microglia Micro-glia represent around 10-20% of all glial cells with a number ranging from 100 to 200 billions of cells depedending on the condition (health vs. disease) Present in the entire CNS including the spinal cord There are CNS regions that are more populated than others and the white mater generally contains less microglia than the gray matter Microglial cells are the resident immune cells of the CNS 19
20 Resting (ramified) Activated Phagocytic Microglia Origin: both macrophages and microglia derive from myeloid progenitors During development Derive from cirulating monocytes during the postnatal stage During adult life Intact brain: microglia cells self renew themselves via in situ proliferation from resident progenitors Diseased brain: microglia cells are replenished from circulating progenitors (e.g. monocytes) 20
21 Resting microglia Microglial cells are highly active in the presumed resting state, continually surveying their microenvironment with extremely motile processes and ramifications. Synaptic pruning Nimmerjahn et al., Science 308, (2005) 21
22 Microglia: Detrimental vs. Protective Microglia activation pathway 22
23 Oligodendrocyte ( 희소돌기아교세포 ) Small, lymphocyte-sized nucleus with a clear halo ; fried egg appearance Function; production and maintenance of the CNS myelin Perineuronal Satellite Cell Interfascicular Cell Myelin forming cell in CNS - Myelin Sheath Cho et al.,
24 FIGURE 31-4: Premyelinating and myelinating oligodendrocytes in vivo. Representative images of (A) premyelinating oligodendrocytes from P6 mouse cortex, labeled with EGFP (in Plp -EGFP mice (Mallon et al., 2002) and PLP (Texas Red) or (B) a myelinating oligodendrocyte from mature mouse striatum labeled with EGFP (in Plp -EGFP mice). (Figure 4B reproduced from Mallon et al., 2002). Copyright 2012, American Society for Neurochemistry. Published by Elsevier Inc. All rights reserved. Nerve fibers Myelinated Myelin sheath Node of Ranvier OLG (CNS) Schwann cell (PNS) Non-myelinated 24
25 Formation of myelin Mesaxon ( 축삭간막 ) Major dense line ( 주치밀선 ) Minor dense line ( 부치밀선 ) 25
26 1. trilaminar unit membrane 2. Major dense line: MBP, Shi mice 3. Minor dense line: PLP (jimpy mice), protein 0 (Trembler mice) 4. Cytoplasm of Schwann cell * 융합하지않은면 : MAG Myelin Proteins 26
27 Myelination in CNS OLG 한세포가담당하는신경섬유의숫자가최대 60 개 하나의축삭중여러마디도가능 Node of Ranvier 존재 말이집틈새존재 축삭간막이없다 Ependymal cell Epithelial Cell lining ventricular surface cilia and microvilli on luminal surface simple cuboidal cell with round nucleus Tanicyte basal process, numerous in 3rd ventricle Choroid Plexus Epithelial Cells ion transporting cell: numerous mitochondria 27
28 Tanycytes Figure 25.5 Regeneration in peripheral nerves 1. Cut 2. Distal portion degenerates 3. Phagocytosed by Macrophages 4. Debris is mostly cleared 5. Proximal axon stump transforms into a growth cone 6. Axon has regrown Donor graft Exercise 28
29 Figure 25.6 Molecular and cellular responses that promote peripheral nerve regeneration Figure Cellular response to injury in the CNS MAG Nogo 29
30 Figure 25.7 Growth-promoting properties of peripheral nerve sheaths and Schwann cells facilitate growth of damaged axons in the CNS 1. Optic nerve is CNS, therefore, would normally not regenerate through the optic nerve. 2. Now grow through the peripheral nerve graft to reach the SC, a normal target for retinal ganglion cells 30
Chapter 7 Nerve tissue 1 Liu Jiamei
Chapter 7 Nerve tissue 1 Liu Jiamei General description: nerve tissue nerve cells (neurons): show numerous long processes receive the stimulation make contact with each other, conduct the nerve impulse
More informationNerve tissue & the Nervous System
Nerve tissue & the Nervous System The human nervous system, by far the most complex system in the body, is formed by a network of many billion nerve cells (neurons), all assisted by many more supporting
More informationNERVOUS TISSUE. 1. Functional units of the nervous system; receive, process, store and transmit information to other neurons, muscle cells or glands.
NERVOUS TISSUE LEARNING OBJECTIVES 1. Characterize and contrast the structure of neuronal cell bodies, dendrites and axons 2. List the classification of synapses and identify the basic structures of a
More informationNervous System. Electrical Signals.III Signal Transmission at Synapses Neurotransmitters.V Neural Circuits.VI
Nervous System Overview.I Histology.II Electrical Signals.III Signal Transmission at Synapses Neurotransmitters.V Neural Circuits.VI Repairs.VII Pathology.VIII.IV 1 Controls and integrates all body activities
More informationNervous system is the most complex system in our body. It is formed by a network of more than 100 million nerve cells (neurons) assisted by many more
Nervous system Nervous system is the most complex system in our body. It is formed by a network of more than 100 million nerve cells (neurons) assisted by many more glial cells. Devoid from connective
More informationHuman Histology The Nervous System. Dr. Rawaa Salim Hameed
Human Histology The Nervous System Dr. Rawaa Salim Hameed The organization of the nervous system Anatomically, the nervous system is divided into:- Neurohistology Structurally, nerve tissue consists of
More informationNervous system. 1. Neurons :
Nervous system nervous system is composed of billions of cells, the most essential being the nerve cells or neurons. There are estimated to be as many as 100 billion neurons in our nervous system. Two
More informationBIOL241 - Lecture 12a
Cranial Nerves, source: training.seer.cancer.gov Nervous System Overview BIOL241 - Lecture 12a 1 Topics Divisions of the NS: CNS and PNS Structure and types of neurons Synapses Structure and function of
More informationNeurobiology. Cells of the nervous system
Neurobiology Cells of the nervous system Anthony Heape 2010 1 The nervous system Central nervous system (CNS) Peripheral nervous system (PNS) 2 Enteric nervous system (digestive tract, gall bladder and
More informationHISTOLOGY د.عبد الجبار فالح الربيعي
Nervous System The human Nervous system is the most complex system in the human body, is formed by a network of more than 100 million nerve cells (neurons) assisted by many more glial cells. Anatomically
More informationBiology 218 Human Anatomy
Chapter 17 Adapted form Tortora 10 th ed. LECTURE OUTLINE A. Overview of the Nervous System (p. 537) 1. The nervous system and the endocrine system are the body s major control and integrating centers.
More informationBIOH111. o Cell Module o Tissue Module o Integumentary system o Skeletal system o Muscle system o Nervous system o Endocrine system
BIOH111 o Cell Module o Tissue Module o Integumentary system o Skeletal system o Muscle system o Nervous system o Endocrine system Endeavour College of Natural Health endeavour.edu.au 1 TEXTBOOK AND REQUIRED/RECOMMENDED
More informationNervous system part 1. Danil Hammoudi.MD
Nervous system part 1 Danil Hammoudi.MD The central nervous system (CNS) is formed by : the brain spinal cord. These elements are enclosed within the skull and spinal vertebral canal. They are covered
More informationHISTOLOGY OF NERVOUS SYSTEM. DR. Nabil Khouri
HISTOLOGY OF NERVOUS SYSTEM DR. Nabil Khouri 2 NERVOUS SYSTEM 25/01/2017 The most complex system in the human body Formed by network more than 100 million neuron Each neuron has a thousand interconnection
More informationThe Nervous System: Neural Tissue Pearson Education, Inc.
13 The Nervous System: Neural Tissue Introduction Nervous System Characteristics Controls and adjust the activity of the body Provides swift but brief responses The nervous system includes: Central Nervous
More information(3) Chemical synapse ---structure
(3) Chemical synapse ---structure LM: in silver preparation dark brown color button-liked on the surface of cell body and dendrites called synaptic button LM: synaptic button (3) Chemical synapse ---structure
More informationWhat Cell Make Up the Brain and Spinal Cord
What Cell Make Up the Brain and Spinal Cord Jennifer LaVail, Ph.D. (http://anatomy.ucsf.edu/pages/lavaillab/index.html) What kinds of cells are these?" Neuron?" Epithelial cell?" Glial cell?" What makes
More informationNervous system. Dr. Rawaa Salim Hameed
Nervous system Dr. Rawaa Salim Hameed Central nervous system (CNS) CNS consists of the brain (cerebrum, cerebellum, and brainstem) and spinal cord CNS is covered by connective tissue layers, the meninges
More informationNervous Tissue. Prof. Zhou Li Dept. of Histology and Embryology
Nervous Tissue Prof. Zhou Li Dept. of Histology and Embryology Organization: neurons (nerve cells) neuroglial cells Function: Ⅰ Neurons 1. structure of neuron soma neurite a. dendrite b. axon 1.1 soma
More informationNervous system Overview ( The master communication system)
Nervous system Overview ( The master communication system) Neuron process Cell body nucleus Neuroglia Nerve Tissue COMPOSITION OF NERVE TISSUE Two principal types of cells, neurons and supporting cells
More informationIntroduction to Nervous Tissue
Introduction to Nervous Tissue Nervous Tissue Controls and integrates all body activities within limits that maintain life Three basic functions 1. sensing changes with sensory receptors 2. interpreting
More informationSheet: microscopic structures of the ns Done by: Rasha Rakan and Nisreen Obiedat
Sheet: microscopic structures of the ns Done by: Rasha Rakan and Nisreen Obiedat Lecture Objectives Classify the types of neurons. Describe the structure of the different parts of neurons. Describe the
More informationNervous Tissue. The unit of nervous tissue is called neuron. It is the longest cell & it doesn t undergo cell division in matured state.
Nervous Tissue The unit of nervous tissue is called It is the longest cell & it doesn t undergo cell division in matured state. It is a special modified tissuess or cells for getting following two basic
More informationRegulatory systems Nervous system Endocrine system Immune system Neurotransmitters Hormones Cytokines
321. Nerve tissue Function: it enables the body to respond to changes in its external and internal stimuli = > Nervous system regulates the function of internal organs (+ endocrine and immune system )
More informationThe 7 th lecture. Anatomy and Physiology For the. 1 st Class. By Dr. Ala a Hassan Mirza
The 7 th lecture In Anatomy and Physiology For the 1 st Class By Dr. Ala a Hassan Mirza Nervous System (part I) The Nerve Tissue and the Nervous System The Tissues of the Body There are 4 types of tissues
More informationApril 29, Neurophysiology. Chul-Kyu Park, Ph.D. Assistant Professor Department of Physiology, Graduate School of Medicine, Gachon University,
April 29, 2016 Neurophysiology Chul-Kyu Park, Ph.D. Assistant Professor Department of Physiology, Graduate School of Medicine, Gachon University, Cells in the brain Neurons glia 1. Astrocytes 2. Microglia
More informationCollin County Community College BIOL Week 5. Nervous System. Nervous System
Collin County Community College BIOL 2401 Week 5 Nervous System 1 Nervous System The process of homeostasis makes sure that the activities that occur in the body are maintained within normal physiological
More informationBiology Dr. Khalida Ibrahim Nervous system The nervous system is responsible for communication between different regions of the body, it is divided
Biology Dr. Khalida Ibrahim Nervous system The nervous system is responsible for communication between different regions of the body, it is divided into: CNS (central nervous system) = brain + spinal cord
More informationTHE NEUROBIOLOGY OF THE NEURON AND THE NEUROGLIA
THE NEUROBIOLOGY OF THE NEURON AND THE NEUROGLIA DEFINITION OF A NEURON Neuron is the name given to the nerve cell and all its processes. Neurons are excitable cells that are specialized for the reception
More informationMajor Structures of the Nervous System. Brain, cranial nerves, spinal cord, spinal nerves, ganglia, enteric plexuses and sensory receptors
Major Structures of the Nervous System Brain, cranial nerves, spinal cord, spinal nerves, ganglia, enteric plexuses and sensory receptors Nervous System Divisions Central Nervous System (CNS) consists
More informationFundamentals of the Nervous System and Nervous Tissue: Part A
PowerPoint Lecture Slides prepared by Janice Meeking, Mount Royal College C H A P T E R 11 Fundamentals of the Nervous System and Nervous Tissue: Part A This is Your Brain on Music Assignment 1 With your
More informationThe Nervous System. PowerPoint Lecture Slides C H A P T E R 7. Prepared by Patty Bostwick-Taylor, Florence-Darlington Technical College
PowerPoint Lecture Slides Prepared by Patty Bostwick-Taylor, Florence-Darlington Technical College C H A P T E R 7 The Nervous System NERVOUS SYSTEM OVERVIEW Essential Question: What are the primary functions
More informationFig The C.S. of the Spinal Cord A ganglion is a term for a collection of perikarya located outside of the CNS. In certain regions of the spinal
Chapter 9 Nervous System The nervous system is divided into two components: The CNS - the brain and spinal cord and the PNS - the nerves emanating from the spinal cord and brain that distribute to other
More information2401 : Anatomy/Physiology
Dr. Chris Doumen Week 5 2401 : Anatomy/Physiology Introduction Neural Tissue TextBook Readings Pages 388 through 397. Make use of the figures in your textbook ; a picture is worth a thousand words! Work
More informationFunctions of the Nervous System. Fundamentals of the Nervous System & Nervous Tissue
Fundamentals of the Nervous System & Nervous Tissue Overview Structure cell types & structures Neurophysiology membrane potential Synapse, neurotransmitters & receptors Functions of the Nervous System
More informationNervous Tissue. Dr. Heba Kalbouneh Associate Professor of Anatomy and Histology
Nervous Tissue Dr. Heba Kalbouneh Associate Professor of Anatomy and Histology Controls and integrates all body activities within limits that maintain life Three basic functions 1. sensing changes with
More informationFundamentals of the Nervous System and Nervous Tissue. Nervous System. Basic Divisions of the Nervous System C H A P T E R 12.
C H A P T E R 12 Fundamentals of the Nervous System and Nervous Tissue Nervous System Sensory input Integration Motor output Figure 12.1 Basic Divisions of the Nervous System Brain CNS Spinal cord Nerves
More information8.2. Types of Neurons
Chapter 8 Nervous Tissue The neuron is the functional and the structural unit of the nervous system. It displays two highly developed physiological traits: 1. Irritability - the capacity to generate a
More informationChapter 12 The Nervous System INTRODUCTION TO THE NERVOUS SYSTEM. Central Nervous System (CNS): STRUCTURE BRAIN SPINAL CORD NERVES
Chapter 12 The Nervous System PowerPoint by John McGill Supplemental Notes by Beth Wyatt INTRODUCTION TO THE NERVOUS SYSTEM STRUCTURE BRAIN SPINAL CORD NERVES Central Nervous System (CNS): Brain Spinal
More information10.1: Introduction. Cell types in neural tissue: Neurons Neuroglial cells (also known as neuroglia, glia, and glial cells) Dendrites.
10.1: Introduction Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Cell types in neural tissue: Neurons Neuroglial cells (also known as neuroglia, glia, and glial
More informationChapter 12: Fundamentals of the Nervous System and Nervous Tissue
Chapter 12: Fundamentals of the Nervous System and Nervous Tissue Overview of the NS PNS (Peripheral Nervous System) CNS (Central Nervous System) Neurons Neuroglia Synapse Some nomenclature Developed by
More informationThe Nervous System 7PART A. PowerPoint Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College
PowerPoint Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College The Nervous System 7PART A Functions of the Nervous System Sensory input gathering information To monitor
More informationNervous Tissue and Histology of CNS
Nervous Tissue and Histology of CNS Functions of Nervous System Like the CPU of a computer, the nervous system is the master controlling system of the body. It is designed to constantly and rapidly adjust
More informationThe cells of the nervous system
The cells of the nervous system LESSON N.9 - PSYCHOBIOLOGY because of the location and volume as compared to our body, the brain has always been a matter of conjecture about its fundamental role in the
More informationHuman Anatomy and Physiology I Laboratory
Human Anatomy and Physiology I Laboratory Histology of Nervous Tissue and The Spinal Cord This lab involves two laboratory exercises: 1) Histology of Nervous Tissue, and 2) Spinal Cord, Spinal Nerves,
More informationNervous tissue, charachteristics, neurons, glial cells
Nervous tissue, charachteristics, neurons, glial cells Functional Organization of Nervous Tissue The Nervous System Components Brain, spinal cord, nerves, sensory receptors Responsible for Sensory perceptions,
More informationFunctional Organization of Nervous Tissue. Nervous tissue, charachteristics, neurons, glial cells. The Nervous System. The Nervous System 21/12/2010
Nervous tissue, charachteristics, neurons, glial cells Functional Organization of Nervous Tissue The Nervous System Components Brain, spinal cord, nerves, sensory receptors Responsible for Sensory perceptions,
More informationThe Nervous System & Nervous tissue. Dr. Ali Ebneshahidi
The Nervous System & Nervous tissue Dr. Ali Ebneshahidi Functions of the Nervous System 1. Nervous system and endocrine system are the chief control centers in maintaining body homeostasis. 2. Nervous
More informationFunc?ons of the Nervous System. Divisions of the Nervous System 1/28/ Sensory input. 2. Integra?on
Func?ons of the Nervous System 11 Fundamentals of the Nervous System and Nervous Tissue: Part A 1. Sensory input Informa?on gathered by sensory receptors about internal and external changes 2. Integra?on
More informationNERVOUS SYSTEM 1 CHAPTER 10 BIO 211: ANATOMY & PHYSIOLOGY I
BIO 211: ANATOMY & PHYSIOLOGY I 1 Ch 10 A This set Ch 10 B CHAPTER 10 NERVOUS SYSTEM 1 BASIC STRUCTURE and FUNCTION Dr. Lawrence G. Altman www.lawrencegaltman.com Some illustrations are courtesy of McGraw-Hill.
More informationOverview of the Nervous System A. Subdivisions of the Nervous System: 1. The two major subdivisions of the nervous system:
BIO 211: ANATOMY & PHYSIOLOGY I 1 Ch 10 A This set Ch 10 B CHAPTER 10 NERVOUS SYSTEM 1 BASIC STRUCTURE and FUNCTION Dr. Lawrence G. Altman www.lawrencegaltman.com Some illustrations are courtesy of McGraw-Hill.
More informationA. Subdivisions of the Nervous System: 1. The two major subdivisions of the nervous system:
BIO 211: ANATOMY & PHYSIOLOGY I 1 Ch 10 A Ch 10 B CHAPTER 10 NERVOUS SYSTEM 1 BASIC STRUCTURE and FUNCTION Dr. Lawrence G. Altman www.lawrencegaltman.com Some illustrations are courtesy of McGraw-Hill.
More informationNerve Cell Flashcards
1. What does the word innervates mean? Refers to a nerve supplying a muscle or organ. For example, The phrenic nerve innervates the diaphragm muscle. 2. 3 parts of the Nervous System 1. Central Nervous
More informationThe Nervous System PART A
7 The Nervous System PART A PowerPoint Lecture Slide Presentation by Jerry L. Cook, Sam Houston University ESSENTIALS OF HUMAN ANATOMY & PHYSIOLOGY EIGHTH EDITION ELAINE N. MARIEB Structural Classification
More informationIrene Yu, class of 2019
Irene Yu, class of 2019 Nerve Cells and Glia Overview What is the brain made of - types of cells What do neurons do; How are they specialized to do it? CONCEPTS communication via signalling changeability
More informationThe Neuron. Consists Of: - cell body. - Dendrites - axon - axon terminal - myelin. dendrites Axon terminal. Cell body. nucleus. axon.
The Neuron Consists Of: - cell body - Dendrites - axon - axon terminal - myelin dendrites Axon terminal Cell body nucleus myelin axon THE SYNAPSE Definition: It is a point of contact between the axon of
More informationMOLECULAR AND CELLULAR NEUROSCIENCE
MOLECULAR AND CELLULAR NEUROSCIENCE BMP-218 November 4, 2014 DIVISIONS OF THE NERVOUS SYSTEM The nervous system is composed of two primary divisions: 1. CNS - Central Nervous System (Brain + Spinal Cord)
More informationChapter 11: Functional Organization of Nervous Tissue
Chapter 11: Functional Organization of Nervous Tissue I. Functions of the Nervous System A. List and describe the five major nervous system functions: 1. 2. 3. 4. 5. II. Divisions of the Nervous System
More informationCNS pathology Third year medical students,2019. Dr Heyam Awad Lecture 1: an introduction: Nervous system cells and their response to injury.
CNS pathology Third year medical students,2019 Dr Heyam Awad Lecture 1: an introduction: Nervous system cells and their response to injury. CNS course This is a 7 hour course and the topics covered are
More informationChapter 7. The Nervous System
Chapter 7 The Nervous System General overview of the nervous system functions Sensory input (info travels in along afferent pathways) Integration (information is processed) Sensory neurons Spinal cord
More informationCharacteristic features of CNS pathology. By: Shifaa AlQa qa
Characteristic features of CNS pathology By: Shifaa AlQa qa Normal brain: - The neocortex (gray matter): six layers: outer plexiform, outer granular, outer pyramidal, inner granular, inner pyramidal, polymorphous
More informationNeural Tissue. Chapter 12 Part A
Neural Tissue Chapter 12 Part A Homeostasis Homeostasis refers to maintaining internal environment. How does body maintain homeostasis?? 1. Each cell, tissue or organ maintain their own internal environment
More information! BIOL 2401! Week 5. Nervous System. Nervous System
Collin County Community College! BIOL 2401! Week 5 Nervous System 1 Nervous System The process of homeostasis makes sure that the activities that occur in the body are maintained within normal physiological
More informationHuman Anatomy and Physiology - Problem Drill 11: Neural Tissue & The Nervous System
Human Anatomy and Physiology - Problem Drill 11: Neural Tissue & The Nervous System Question No. 1 of 10 The human body contains different types of tissue. The tissue is formed into organs and organ systems.
More information25 Things To Know. Neurons
25 Things To Know Neurons Neurons receive & transmit to other cells Neurons Many last your whole life Neurons Many last your whole life Other cells die and are replaced Most aren t replaced Neurons Hippocampus
More informationCNS third year med students Summary of midterm material H Awad
CNS third year med students 2018 Summary of midterm material H Awad Dear All This presentation summaries the main important topics covered in the midterm material ( lectures 1-6) There will be two questions
More informationsensory input receptors integration Human Anatomy motor output Ch. 7 effectors Structural classification
Human Anatomy Ch. 7 I. The Nervous System A. General characteristics 1. body s control & communication center a. 3 overlapping functions 1) sensory input: receptors monitor stimuli 2) integration: processes,
More informationSOME BASIC TERMINOLOGY CNS: Central Nervous System: Brain + Spinal Cord
SOME BASIC TERMINOLOGY CNS: Central Nervous System: Brain + Spinal Cord CEREBROSPINAL FLUID (CSF): The fluid filling the ventricles, cerebral aqueduct, central canal, and subarachnoid space. It is a filtrate
More informationChapter 8 Nervous System
Chapter 8 Nervous System Two message centers: Functions of these systems: 1. * 2. * Overview of the Nervous System Parts: General Functions: Functions Sensory input: Sensation via nerves Integration: interpretation
More informationNervous System. Master controlling and communicating system of the body. Secrete chemicals called neurotransmitters
Nervous System Master controlling and communicating system of the body Interacts with the endocrine system to control and coordinate the body s responses to changes in its environment, as well as growth,
More informationUnit Three. I. General Functions of the Nervous System. I. General Functions of the Nervous System
10 Refer to the following URLs. It is a good idea to print them and bring them to class. Be sure to study these along with your book. http://www.sirinet.net/~jgjohnso/nervous.html http://faculty.washington.edu/chudler/ap.html
More information1.To describe the main components of the nervous tissue: neurocytes and glyocytes.
Volgograd state medical university Department of histology, embryology, cytology Lecture: NERVOUS TISSUE for the 2 nd course English medium students Volgograd,, 2017 Objectives: 1.To describe the main
More informationChapter 12. Nervous Tissue
Chapter 12 Nervous Tissue Regulation of Homeostasis Two systems work together to maintain a stable internal environment // This is homeostais endocrine system communicates by means of chemical messengers
More informationNeuronal plasma membrane
ORGANELLES ORGANELLES Neuronal plasma membrane The neuronal plasma membrane contains several local domains with unique properties Presynaptic terminal Endoplasmic Reticulum In neurons the Nissl bodies
More informationMan and his environment
Man and his environment Dr. Elriah M. Makie 0122858517 Nervous Tissue BSc.M.Sc.MBBS Introduction The nervous system is divided into two main parts: The central nervous system (CNS) comprising the brain
More informationBI 232: Human Anatomy & Physiology
BI 232: Human Anatomy & Physiology Roster Business Course Introduction and Syllabus Notecard Name E-mail Why you are taking the course Something interesting you did over break Lecture Tips Use the Study
More informationWeek 7 and 8 Master Worksheet
The Nervous System Week 7 and 8 Master Worksheet 1. Complete the chart regarding the 3 functions of the nervous system: Sensory input What does it do? Integration Motor output 2. Complete the chart: Component
More informationNeurons vs. glia. Traditionally, glia have been viewed as passive cells that help to maintain the function of neurons.
GLIA Neurons vs. glia The defining characteristic of a neuron is its ability to transmit rapid electrical signals in the form of action potentials. All other neural cells that lack this property are broadly
More informationMeyers' A&P February 15, Unit 7. The Nervous System. I. Functions of the Nervous System. Monitors body's internal and external enviornments
Unit 7 The Nervous System I. Functions of the Nervous System Monitors body's internal and external enviornments Integrates sensory information Coordinates voluntary & involuntary responses of many other
More informationCNS pathology Third year medical students. Dr Heyam Awad 2018 Lecture 1: an introduction
CNS pathology Third year medical students Dr Heyam Awad 2018 Lecture 1: an introduction CNS course This is a 7 hour course and the topics covered are important for your clinical years and your work as
More informationHistology of the CNS
Histology of the CNS Lecture Objectives Describe the histology of the cerebral cortex layers. Describe the histological features of the cerebellum; layers and cells of cerebellar cortex. Describe the elements
More informationNeuronal plasma membrane
ORGANELLES ORGANELLES Neuronal plasma membrane The neuronal plasma membrane contains several local domains with unique properties Presynaptic terminal Endoplasmic Reticulum In neurons the Nissl bodies
More informationThe functional Anatomy of the Nervous System. DR. OKSANA PETRICHKO Department of Human Anatomy
The functional Anatomy of the Nervous System DR. OKSANA PETRICHKO Department of Human Anatomy Coordination and Regulation of Body Systems Nervous system. Conducts nerve impulses maintaining homeostasis
More informationNervous System (Part A-1) Module 8 -Chapter 14
Nervous System (Part A-1) Module 8 -Chapter 14 Overview Susie Turner, M.D. 1/9/13 Cellular structure of the nervous system Neurons Neuroglia Nervous System Divisions Central nervous system Peripheral nervous
More informationCell Biology of the Nervous System
Cell Biology of the Nervous System 1. Functions of a Nervous System receive information from environment outside and inside the body; process, integrate and interpret this information to organize motor
More informationNervous Tissue and Nervous System. Zhong Jinjie
Nervous Tissue and Nervous System Zhong Jinjie 0017152@zju.edu.cn Nervous System Central nervous system Brain Spinal cord Peripheral nervous system Ganglia Nerves Nerve endings In the histological slide
More informationNerve Cells and Behavior
Nerve Cells and Behavior 27 th September, 2016 Touqeer Ahmed Ph.D. Atta-ur-Rahman School of Applied Biosciences National University of Sciences and Technology Nervous System and Behavior Nervous system
More informationNURSE-UP INTRODUCTION TO THE NERVOUS SYSTEM
NURSE-UP INTRODUCTION TO THE NERVOUS SYSTEM FUNCTIONS OF THE NERVOUS SYSTEM Body s primary communication and control system. Integrates and regulates body function Collects information specialized nervous
More informationCell Overview. Hanan Jafar BDS.MSc.PhD
Cell Overview Hanan Jafar BDS.MSc.PhD THE CELL is made of: 1- Nucleus 2- Cell Membrane 3- Cytoplasm THE CELL Formed of: 1. Nuclear envelope 2. Chromatin 3. Nucleolus 4. Nucleoplasm (nuclear matrix) NUCLEUS
More informationCells of the Nervous System
Cells of the Nervous System Layout of the Nervous System Central Nervous System (CNS) Brain (in the skull) Spinal Cord (in the spine) Interprets sensory input, initiates movement, and mediates complex
More information浙江大学医学院基础医学整合课程 各论 III. The Nervous System. Dr. ZHANG Xiong Dept. of Physiology ZJU School of Medicine
The Nervous System Dr. ZHANG Xiong Dept. of Physiology ZJU School of Medicine xiongzhang@zju.edu.cn http://10.202.77.12/ 1 Part 1. Summary of the nervous system 2 The Nervous System Central Nervous System
More informationUnit I Problem 9 Histology: Basic Tissues of The Body
Unit I Problem 9 Histology: Basic Tissues of The Body - What is the difference between cytology and histology? Cytology: it is the study of the structure and functions of cells and their contents. Histology:
More informationANATOMY & PHYSIOLOGY ONLINE COURSE - SESSION 7 THE NERVOUS SYSTEM
ANATOMY & PHYSIOLOGY ONLINE COURSE - SESSION 7 THE NERVOUS SYSTEM Introduction The nervous system is the major controlling, regulatory, and communicating system in the body. It is the center of all mental
More informationaction potential afferent neuron Weblike; specifically, the weblike middle layer of the three meninges. arachnoid astrocytes autonomic nervous system
action potential A large transient depolarization event, including polarity reversal, that is conducted along the membrane of a muscle cell or a nerve fiber. afferent neuron Nerve cell that carries impulses
More informationCSE511 Brain & Memory Modeling. Lect03: Intro to Neuroscience
CSE511 Brain & Memory Modeling CSE511 Brain & Memory Modeling Lect02: BOSS Discrete Event Simulator Lect03: Intro to Neuroscience Chapter 1 of Purves et al., 4e Larry Wittie Computer Science, StonyBrook
More informationOverview of Nervous System
Nervous Tissue Overview of the nervous system Nerve cells (neurons) Supportive cells (neuroglia) Electrophysiology of neurons Synapses Neural integration 12-1 Overview of Nervous System Endocrine and nervous
More informationAnatomy and Physiology 1 Chapters 12 and 13 self quiz Pro, Dima Darwish,MD.
Anatomy and Physiology 1 Chapters 12 and 13 self quiz Pro, Dima Darwish,MD. 1) Which of the following is a function of the nervous system? A) sense the internal and external environments B) integrate sensory
More informationCells of the nervous system
Neurobiology Cells of the nervous system Anthony Heape 2011 1 Cells of the nervous system Neuroglia : part 2 The non excitable cells of the nervous system that provide support to neuronal survival and
More informationNERVOUS SYSTEM. Academic Resource Center. Forskellen mellem oscillator og krystal
NERVOUS SYSTEM Academic Resource Center Forskellen mellem oscillator og krystal Overview of the Nervous System Peripheral nervous system-pns cranial nerves spinal nerves ganglia peripheral nerves enteric
More information