MTSA Advanced Physiology Test 3 questions with answers

MTSA Advanced Physiology Test |\ |\ |\ |\




3 questions with answers
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big idea for tissues innervated by the autonomic nervous system
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- CORRECT ANSWERS ✔✔innervation of tissue not usually under
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conscious control |\




examples of tissues innervated by the ANS - CORRECT ANSWERS
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✔✔-cardiac muscle |\




-electrical fibers of the heart |\ |\ |\ |\




-smooth muscle (blood vessels)
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-glands
-visceral muscle (GI) |\ |\




number of neurons from grey matter of spinal cord to target
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tissue in the somatic pathway - CORRECT ANSWERS ✔✔one
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number of neurons from grey matter of spinal cord to target
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tissue in the ANS - CORRECT ANSWERS ✔✔two (pre-ganglionic
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and post ganglionic)
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location of cell bodies for ANS pre-ganglionic neurons - CORRECT
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ANSWERS ✔✔lateral horns of the gray matter in the spinal cord
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,regions of spinal cord with lateral horns - CORRECT ANSWERS
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✔✔T1-L2 |\




S2-S4


location in the gray matter of somatic lower motor neurons -
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CORRECT ANSWERS ✔✔anterior horn of the gray matter
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divisions of autonomic nervous system - CORRECT ANSWERS
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✔✔sympathetic and parasympathetic |\ |\




another name for the sympathetic nervous system - CORRECT
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ANSWERS ✔✔thoracolumbar division|\ |\




another name for the parasympathetic nervous system -
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CORRECT ANSWERS ✔✔craniosacral division
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rational for the name thoracolumbar - CORRECT ANSWERS
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✔✔because the cell bodies for pre-ganglionic neurons originate in
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the lateral horns of the gray matter between T1 and L2
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rational for the name craniosacral - CORRECT ANSWERS
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✔✔because the cell bodies for the pre ganglionic neurons
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originate in the brainstem and the lateral horns in S2-S4
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cranial nerves with parasympathetic function - CORRECT
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ANSWERS ✔✔CN III, VII, IX, X |\ |\ |\ |\ |\

,site of synapses between pre and post ganglionic neurons in the
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sympathetic nervous system - CORRECT ANSWERS |\ |\ |\ |\ |\ |\


✔✔sympathetic chain ganglia (most) and collateral ganglia |\ |\ |\ |\ |\ |\




number of sympathetic collateral ganglia - CORRECT ANSWERS
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✔✔four


in the SNS, the preganglionic neuron is... - CORRECT ANSWERS
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✔✔very short |\




in the SNS the post ganglionic neuron is - CORRECT ANSWERS
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✔✔long


in the ANS (both SNS and PNS) the preganglionic neuron is
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always... - CORRECT ANSWERS ✔✔myelinated type B fiber
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in the ANS (both SNS and PNS) the post ganglionic neuron is
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always - CORRECT ANSWERS ✔✔unmyelinated type C fibers
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are the sympathetic chain ganglia and collateral ganglia close to
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or far from the spinal cord - CORRECT ANSWERS ✔✔close
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in the PNS, the preganglionic neuron is - CORRECT ANSWERS
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✔✔very long (it goes almost all the way to the target tissue)
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, site of synapses between pre and post ganglionic neurons in the
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parasympathetic nervous system - CORRECT ANSWERS |\ |\ |\ |\ |\ |\


✔✔terminal ganglia |\




in the PNS, the post ganglionic neuron is - CORRECT ANSWERS
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✔✔VERY short |\




sometimes the PNS terminal ganglia is... - CORRECT ANSWERS
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✔✔in the walls of the target tissue = VERY VERY short post
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ganglionic fiber |\




almost all tissues have both... - CORRECT ANSWERS ✔✔SNS and
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PNS innervation
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ANS response is determined by... - CORRECT ANSWERS
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✔✔whether SNS or PNS predominate |\ |\ |\ |\




even when SNS predominates is there still PNS activity? -
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CORRECT ANSWERS ✔✔yes. there can be. (and the same applies
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in the other direction)
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three types of ANS pathways - CORRECT ANSWERS ✔✔-typical
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SNS pathway
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-atypical SNS pathway |\ |\




-parasympathetic pathway |\