Discussion Section 2 No Answers

Discussion Section 2 No Answers - Jeremy Chau...

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Jeremy Chau J2Chau@ucsd.edu BILD 2 Discussion Section Worksheet 10/11/10 Neuron Structure and Function 1. Cell body 2. Dendrites 3. Axon 4. Axon hillock 5. Synapse 6. Synaptic terminal 7. Neurotransmitters 8. Pre-synaptic cell 9. Postsynaptic cell Graded Potentials Action Potentials
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Membrane Potential Membrane potential 2 Major Classes of Channels : o Leak Channels o Gated Channels o Others Ion Concentration Sodium (Na + ) Inside = Outside = Potassium (K + ) Inside = Outside = Calcium (Ca 2+ Inside = Outside =
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Chloride (Cl - ) Inside = Outside = Looking at this chart above: o K + wants to flow o Na + wants to flow o Cl - wants to flow Thus, if: o Chloride channels open = In the axon, there are no significant chloride channels o Potassium Channels open = o Sodium channels open = Membrane potential of resting cell is between The minus sign indicates Why the resting potential is negatively charged ? o
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Discussion Section 2 No Answers - Jeremy Chau...

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