BILD2_Lect_2_16_12

BILD2_Lect_2_16_12 - Figure 48.6 Glia 80 m Cell bodies of...

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Unformatted text preview: Figure 48.6 Glia 80 m Cell bodies of neurons Figure 48.4 Nucleus Dendrites Stimulus Axon hillock Cell body Presynaptic cell Signal direction Axon Synapse Neurotransmitter Synaptic terminals Postsynaptic cell Synaptic terminals Figure 48.5 Dendrites Axon Cell body Portion of axon Sensory neuron Interneurons Motor neuron Figure 48.7 Key Na + K + Sodium- potassium pump Potassium channel Sodium channel OUTSIDE OF CELL INSIDE OF CELL Figure 48.8 Inner chamber - 90 mV + 62 mV Outer chamber Inner chamber Outer chamber 140 m M KCl 150 m M NaCl 5 m M KCl 15 m M NaCl Potassium channel Sodium channel Artificial membrane K + Na + Cl- Cl- (a) Membrane selectively permeable to K + (b) Membrane selectively permeable to Na + E K = 62 mV =-90 mV E Na = 62 mV = + 62 mV Figure 48.10 Stimulus Threshold Resting potential Hyperpolarizations Time (msec) + 50 0 -50 -100 1 0 2 3 4 5 + 50 0 -50 -100 + 50 0 -50 -100 Time (msec) 1 0 2 3 4 5 Time (msec) 1 0 2 3 4 5 6 Threshold Resting potential Threshold Resting...
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This note was uploaded on 04/05/2012 for the course BILD 2 taught by Professor Schroeder during the Winter '08 term at UCSD.

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BILD2_Lect_2_16_12 - Figure 48.6 Glia 80 m Cell bodies of...

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