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coordinates all body functions
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One of the smallest but most complex
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Mc1 lec quiz 2

QuestionAnswer
coordinates all body functions NERVOUS SYSTEM
One of the smallest but most complex STRUCTURE
Brain 2kg (4.5lbs) or 3% of the total body weight
7 structures 1. Brain 2. Cranial nerves 3. Spinal cord 4. Spinal nerve 5. Ganglia 6. Enteric plexuses 7. Sensory receptors
100B neurons Brain
12, follows a defined path and serves a specific region of the body. Cranial nerves
connects through the brain Spinal cord
emerge from the spinal cord Spinal nerve
small masses of nervous tissue, Ganglia
walls of organs of the gastrointestinal tract Enteric plexuses
specialized cells that monitor changes Sensory receptors
3 functions 1. Sensory function 2. Integrative function 3. Motor function
detect internal stimuli (_____) and external stimuli (_____) Sensory function Blood acidity, feeling of warmth
Processing of sensory information by analyzing and storing Integrative function
elicit an appropriate motor response Motor function
2 SUBDIVISIONS OF THE NERVOUS SYSTEM Central nervous system Peripheral nervous system
brain and spinal cord; source of houghts, emotions, and memories Central nervous system
all nervous tissue outside CNS Peripheral nervous system
2 functional divisions Sensory (afferent) Motor ( efferent )
Created by: dyd
 

 



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