Brief Overview of Tissues STUDENT NOTES Date: 1. Tissue 2. Connective Tissue. 3. Tissue 4. Nervous Tissue

Transcription

1 Levels of Structural Organization: Brief Overview of Tissues STUDENT NOTES Date: Recall The four major tissue types include: 1. Tissue 2. Connective Tissue 3. Tissue 4. Nervous Tissue Epithelial Tissue Connective Tissue Location Linings, covering, and glandular tissues of the body Note EXAMPLES: Anything that must first pass through the epithelium! Function Protection, absorption, filtration, and secretion Location Function EXAMPLES: bone, blood, cartilage, adipose Muscle tissue Location Function contract to produce movement Nervous tissue Location Function receives and conduct electrochemical impulses from one part of the body to another - Irritability ( of stimuli) - Conductivity ( to stimuli)

2 Tutorial Notes Part 1: Epithelium 1. What are the two basic types of epithelial tissues? o o 2. What are the characteristics common to ALL Epithelial tissue? 1. They are made of 2. The lower surface is bound by a basement membrane 3. Avascular (have no blood supply) 4. Regenerate easily if well nourished 3. Sum up the functions of lining epithelia The function of glandular epithelia is to produce secretions. List examples of products of glands below.

3 Basic Tissue Types 1. Epitelia line hollow organs and cavities, cover our body s surface in skin, and make up many small tubes and ducts. What are examples of hollow organs? Which cavities? 2. Layer and cell type classify Epitelia. Describe layer types and cell shapes below and draw picture in box: o Layer Types: - Epithelium: - Epithelium: Epithelium Epithelium o Cell Shape: - Squamous: - Cubodial: - Columnar: Squamous Cells Cubodial Cells Columnar Cells

4 o Other Special Epithelia: - Pseudostratified: How many layers? simple OR stratified (CIRCLE) What does pseudostratifed mean? Why is it sometimes interpreted as multiple layers? - Transitional; How many layers? simple OR stratified (CIRCLE) What makes it different from other stratified epithelium? Where is this type found? Pseudostratifled Epithelium Transitional Epithelium

5 3. Practice naming Epithelia. Circle the correct layer and cell shape: Examine the pictures. You ll notice epithelia will be on top, followed by a basement membrane, and underneath the connective tissue. You name tissue by examining the layers and the type of cells. To name the tissue answer the two questions. How many layers? What is the top cell shape? CIRCLE Tissue #1 Name: Tissue #2 Name: Tissue #3 Name: Tissue #4 Name:

6 Tissue #5 Name: Tissue #6 Name: Tissue #7 Name: Tissue #8 Name:

7 Practice naming the 8 epithelial tissues from microscope slide. Check your answer and record below. Complete Concept Map

8 Tutorial Notes Part 2: Connective Tissue 1. Connective tissues are the most of the primary four tissues. 2. How are connective tissues different from epithelial tissue? Cells are. It also contains extracellular matrix (non- living material surrounding living cells) containing ground (mainly water) substance and fibers that are produced by the cells. 3. List the four main functions of connective tissue. 4. What are the four basic types of connective tissues? o o o o 5. What are the three criteria for connective tissue? Complete Concept Map

9 Examine the picture of the various types of Connective Tissue. Create your own description based on the image and microscope pictures that follow. Image Description Dense Regular/General Connective Tissues Loose Adipose Areolar

10 Vascular Blood Bone Compact Connective Tissues Fibrocartilage Cartilage Elastic Hyaline

11 Practice naming the 8 connective tissues from microscope slide. Check your answer and record below.

12 Tutorial Notes Part 3: Muscle and Nervous Tissue and Tissue Repair 1. What are the characteristics of muscle tissue? 2. What are the three types of muscle tissues? Identify the characteristics based on the diagram below. Shape: long rod- like cells spindle- shaped long cylindrical cells (end split) Striations: striations present striations absent Nuclei Location: several nuclei present on edges of cell one nucleus in center of cell one/two nuclei present in center Muscle Tissue Cardiac Smooth Skeletal Characteristics: Characteristics: Characteristics:

13 Practice naming the 3 muscle tissues from microscope slide. Check your answer and record below. Nervous Tissue 3. What are the characteristics of nervous tissue? 4. What are the two types of nervous tissues? 5. Identify the three locations you can find nervous tissue.

14 Tissue Repair 1. What are the two methods for tissue repair? Describe the difference between the two. o o 2. Fill in the below regarding tissue repair: 1. Upon damage to the tissue,. 2. Vasodilation occurs and causes. Antibodies are helpful to. 3. A forms in the tissue binding together the edges of the cut. It prevents. 4. The surface of the clot forms a and macrophages beneath. 5. New grow into the wound. Macrophages and fibroblasts migrate. Macrophages function to and fibroblasts that create scar tissue. This is fibrosis. 6. into the wound area beneath the scab allowing for regeneration. 7. The scab eventually loosens and falls off. Tissue repair complete. Place the below in order based on tissue repair and description above.