BISC 220 The Human Nervous System (Chapter 11)

BISC 220 The Human Nervous System (Chapter 11) - The Human...

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The Human Nervous System Jagruti Vedamati
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For today… Background info Examination of prepared slides Investigating the Senses Reflexes Touch Sensitivity Pain Perception/Tolerance Muscle sensing Dissection and examination of a preserved sheep brain
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The nervous system: to interpret sensory information and decide how to respond Receptor cells : located in internal and external sense organs; send information Effectors : muscles or glands; respond to the information Homeostasis : the equilibrium of external stimuli and appropriate response pattern within the body maintained by nervous system
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CNS-central nervous system Composed of the brain and spinal cord Function: to receive sensory info and coordinate most of the body’s activities
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PNS-Peripheral Nervous System Consists of all nervous tissue outside of the CNS Spinal nerves (31 pairs) connect with the spinal cord and innervate most areas of the body. Cranial nerves (12 pairs)
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This note was uploaded on 05/05/2008 for the course BISC 220LG taught by Professor Mcclure during the Spring '07 term at USC.

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BISC 220 The Human Nervous System (Chapter 11) - The Human...

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