LEARNING OBJECTIVES. Campbell, Ch 48
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1 NERVOUS SYSTEM
2 LEARNING OBJECTIVES 1. Explain the importance of nervous system and its various adaptations 2. Differentiate between the central and peripheral nervous system 3. Discuss the importance of various types of neurons 4. Describe the overall scheme of neuron signaling between the central and peripheral nervous systems 5. Explain how signals are transmitted in neurons and various adaptations that enhance this Campbell, Ch 48
3 LEARNING OBJECTIVES 1. Explain the importance of nervous system and its various adaptations 2. Differentiate between the central and peripheral nervous system 3. Discuss the importance of various types of neurons 4. Describe the overall scheme of neuron signaling between the central and peripheral nervous systems 5. Explain how signals are transmitted in neurons and various adaptations that enhance this Campbell, Ch 48
4 Why do animals need a nervous system?
5 ADAPTATIONS OF NERVOUS SYSTEMS Describe the evolution of the nervous system from hydra to chordates.
6 LEARNING OBJECTIVES 1. Explain the importance of nervous system and its various adaptations 2. Differentiate between the central and peripheral nervous system 3. Discuss the importance of various types of neurons 4. Describe the overall scheme of neuron signaling between the central and peripheral nervous systems 5. Explain how signals are transmitted in neurons and various adaptations that enhance this Campbell, Ch 48
7 NERVOUS SYSTEM 1. What are the 2 major types of nervous system in humans? 2. What is the function of each?
8 LEARNING OBJECTIVES 1. Explain the importance of nervous system and its various adaptations 2. Differentiate between the central and peripheral nervous system 3. Discuss the importance of various types of neurons 4. Describe the overall scheme of neuron signaling between the central and peripheral nervous systems 5. Explain how signals are transmitted in neurons and various adaptations that enhance this Campbell, Ch 48
9 TYPES OF NEURONS 1. What are the major types of neurons? 2. Where can they be found? 3. What is the function of each? 4. How does the structure of each r e l a t e t o i t s function?
10 LEARNING OBJECTIVES 1. Explain the importance of nervous system and its various adaptations 2. Differentiate between the central and peripheral nervous system 3. Discuss the importance of various types of neurons 4. Describe the overall scheme of neuron signaling between the central and peripheral nervous systems 5. Explain how signals are transmitted in neurons and various adaptations that enhance this Campbell, Ch 48
11 ANATOMY OF A NEURON How does the anatomy of the neuron explain the direction of the signal?
12 % htm NEURON SIGNALING Describe the movement of signals when you accidentally touch a hot pot.
13 LEARNING OBJECTIVES 1. Explain the importance of nervous system and its various adaptations 2. Differentiate between the central and peripheral nervous system 3. Discuss the importance of various types of neurons 4. Describe the overall scheme of neuron signaling between the central and peripheral nervous systems 5. Explain how signals are transmitted in neurons and various adaptations that enhance this Campbell, Ch 48
14 NEURON SIGNALING synaptic signal What is the purpose of a synaptic signal? graded potential? action potential? graded potential action potential
15 CONDUCTION OF ACTION POTENTIAL In general, how is an action potential generated?
16 ALL-OR-NONE LAW What is the all-ornone law?
17 FACTORS THAT AFFECT CONDUCTION How does a giant axon in squids and the presence of myelin sheath in vertebrates speed up signal transmission?
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