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AP Biology Nervous Systems Part 1. Step 1: Reception.

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Presentation on theme: "AP Biology Nervous Systems Part 1. Step 1: Reception."— Presentation transcript:

1 AP Biology Nervous Systems Part 1

2 Step 1: Reception

3 Step 2: Transduction

4 Step 3: Response

5 Ions and Energy 150 mM KCl Inner chamber Outer chamber –92 mV Potassium channel 5 mM KCl Artificial membrane K+K+ Cl – 150 mM NaCl Inner chamber Outer chamber +62 mV Sodium channel 15 mM NaCl Na + Cl –

6 Evolution of a Nervous system in Animals

7 Overview of the Nervous System

8 CNS vs. PNS

9 Neuron structure

10 Synapse and Neurotransmitter

11 Glial Cells (Like a house frame … but for a brain

12 Schwann Cells OR Oligiodendrocytes Axon Nodes of Ranvier Schwann cell Myelin sheath Nucleus of Schwann cell Schwann cell Nodes of Ranvier Layers of myelin Axon 0.1 µm


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