Wk4L1s(1) - Announcements Receptor Types(small part of Chap...

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Announcements Receptor Types (small part of Chap 4) and Neuroanatomy Ch 2 p34 to 57 May Start Evolution this Thursday, but won’t get far Let’s leave the next set of articles and case studies for next Thursday the 22 nd . First Exam, Tuesday the 20 th ! Must have clicker. If you get a message about absences from my class from FBAI do not be concerned. If you are not attending class, you may want to be concerned.
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Resting Potential Summary Cell membrane with passive and gated ion channels is selectively permeable Chemical and Electrical forces drive ions across the membrane No net movement = Equilibrium Potential Resting Potential -60mV: passive K+ channels are open, Na+ channels are leaky, and the Na+/K+ pump is at work
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Membrane depolarized past threshold, by a receptor potential or synaptic potential. Voltage-gated Na+ channels open in a positive-feedback loop, rising phase near Na+ EP.
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