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MCPHS Exam: Questions & Correct Solutions (100%)
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MCPHS Exam: Questions & Correct Solutions (100%)
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MCPHS Exam: Questions & Correct Solutions (100%)Function of NS Right Ans - monitor int/ext env
Process and integrate changes --> make action that is *communicated* to
target
NS division Right Ans - CNS and PNS
CNS Right Ans - brain and spinal cord
PNS Right Ans - enter and exit spinal cord
sensory
motor
-sensory
-motor
---somatic
---involuntary
-------symp and parsymp
enteric/gut Right Ans - 2nd brain
somatic / voluntary Right Ans - efferent neurons exit CNS
control skeletal
autonomic NS Right Ans - involuntary
CV, respiratory, digestive, GU
maintain homeostasis
targets/effectors of autonomic Right Ans - target: smooth muscle of hollow
organs
- bronchi, blood vessel, GI, GU tract
target: cardiac muscle
, -contract
target: conduction tissue of cardiac (SA/AV node)
target: glandular secretions
-saliva
-sweat
-gastric
-bronchial
targets/effectors of somatic Right Ans - skeletal
voluntary reflex arc Right Ans - stimulate pain receptors
stimulate neuron and reach threshold and cause AP
AP enters DRG into dorsal horn of spinal cord
processed in interneuron
send outgoing message out of spinal cord via ONE neuron
target: SKELETAL
voluntary vs involuntary system Right Ans - voluntary - 1 efferent
involuntary - 2 efferent
autonomic system Right Ans - 2 efferent neurons : pre and post ganglion
-linked together
AP occurs via Na+ channels
chemical comm. b/w ganglia and junction w target
sensory Right Ans - toward CNS
afferent
somatic/voluntary Right Ans - exit CNS
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