CLEMSON BIOL 2220 EXAM 4
what does the CNS consist of? What does it do? - Answer- brain
spinal cord
-nervous control center
-interprets sensory
-dictates motor output based on reflexes, current/past experiences
What does the PNS consist of? What does it do? - Answer- part of nervous sys...
CLEMSON BIOL 2220 EXAM 4
what does the CNS consist of? What does it do? - Answer- brain
spinal cord
-nervous control center
-interprets sensory
-dictates motor output based on reflexes, current/past experiences
What does the PNS consist of? What does it do? - Answer- part of nervous system
outside the CNS
-mainly nerves & ganglia
-serves as a communication line for CNS
What are 2 portions of the PNS? - Answer- Sensory (Afferent) division
Motor (Efferent) division
What does the Sensory (Afferent) division of the PNS do? What nerve fiber(s) does it
contain? - Answer- -somatic & visceral nerve fibers
-conduct impulse from receptors to the CNS
What does the Motor (Efferent) division of the PNS do? What nerve fiber(s) does it
contain? - Answer- -motor nerve fibers
-conduct impulses from CNS to effectors
(the muscles and glands)
What are 2 systems of the Motor (Efferent) division of the PNS? - Answer- Somatic
nervous system
Autonomic Nervous System
The Somatic Nervous System is __________________, while the Autonomic
Nervous System is ____________________. Both belong to the motor (efferent)
division of the ________. - Answer- Somatic- voluntary
Autonomic-involuntary (visceral)
belong to the motor efferent division of the PNS
What 2 divisions does the Autonomic Nervous System (ANS) have? - Answer-
Sympathetic
Parasympathetic
What does the Somatic nervous system do? What division does it belong to? -
Answer- it conducts impulses from CNS to skeletal muscles
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