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Worksheet+14+-+Answer+Key - Bio 93 Worksheet 14 Lecture 27...

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Bio 93 Pooja Patel Worksheet 14 – Lecture 27 and 28 [email protected] Lecture 27: Neuron Physiology and Membrane Potential Nervous System o Processes information in three stages Sensory Input Integration Motor Output o Made up of: Central Nervous System (CNS) Brain Spinal Cord Peripheral Nervous System (PNS) Nerves outside of CNS o Reflex: an automatic response Sensory Input Spinal Cord Motor Output Neurons o Structural and functional units of nervous system o Consists of: Cell body Dendrites (Input) Axon (Output) Myelin Sheath Made by Schwann Cells o Glial Cells: support cells Information Transfer o Information is transmitted in the form of an electrical signal o Membrane potential: the voltage inside the neuron (mV) Generated by unequal distribution of charged ions inside and outside the cell Anions: negatively charged o Main intracellular anion: Cl - o Main extracellular anion: proteins, amino acids, sulfate, and
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This note was uploaded on 12/13/2011 for the course BIOSCI 93 taught by Professor Staff during the Fall '11 term at UC Irvine.

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Worksheet+14+-+Answer+Key - Bio 93 Worksheet 14 Lecture 27...

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