AP Biology 2004-2005 AP Biology Lab Review. AP Biology 2004-2005 Lab 1: Diffusion & Osmosis.
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AP Biology Nervous Systems Part 1
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AP Biology. Nervous Systems Part 1. Step 1: Reception. Step 2: Transduction. Step 3: Response. –92 mV. +62 mV. Inner chamber. Outer chamber. Inner chamber. Outer chamber. 150 m M NaCl. 150 m M KCl. 15 m M NaCl. 5 m M KCl. Ions and Energy. Cl –. K +. Na +. Cl –. Sodium - PowerPoint PPT Presentation
Transcript of AP Biology
AP Biology
Nervous SystemsPart 1
Step 1: Reception
Step 2: Transduction
Step 3: Response
Ions and Energy
150 mMKCl
Innerchamber
Outerchamber
–92 mV
Potassiumchannel
5 mMKCl
Artificialmembrane
K+
Cl–
150 mMNaCl
Innerchamber
Outerchamber
+62 mV
Sodiumchannel
15 mMNaCl
Na+
Cl–
Evolution of a Nervous system in Animals
Overview of the Nervous System
CNS vs. PNS
Neuron structure
Synapse and Neurotransmitter
Glial Cells(Like a house frame … but for a brain
Schwann Cells OR Oligiodendrocytes
Axon Nodes ofRanvier
Schwanncell
Myelin sheathNucleus ofSchwann cell
Schwanncell
Nodes of Ranvier
Layers of myelinAxon
0.1 µm