medocuk
IM-RES
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Posts: 1,467
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A new acetyl choline receptor inhibitor has just been approved by the FDA. You consider the possible therapeutic implications of this agent and want to review the Autonomic Nervous supply of various organs. Which of the following nervous outputs is nor adrenergic.
1. Sympathetic output to adrenals.
2. Sympathetic output to sweat glands.
3. Sympathetic output to Bladder
4. Parasympathetic output to heart
5. Parasympathetic output to bronchi
Please do explain what the question wants to know and why is your answer the correct one. Many thanks for your help.
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| angel^Doctor
Forum Guru
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Posts: 468
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answer is 3
the question is trying to ask u which of the following has NE AS NEUROTRANSMITTER
in other words which from the choices release NE to produce the action in the mentioned organ
in order to solve this question u need to recall that :
1- ganglionic neurotransmitter whether the presynaptic neuron is sympathatic or parasympathatic is Ach
note that for sympathatic this include presynaptic innevation of adrenal gland ( since sympthatic innervate the adrenal through presynaptic neuron trnsmitter is Ach
so 1 is ruled out
2- post synaptic transmmission for sympathatic ( post synaptic is to organs)
is always NE except to the sweat gland it is Ach ( 2 is ruled out)
3- post synaptic parasympathatic outflow to organs is always Ach so 4 and 5 are ruled out
the only answers is 3 since is goes with rule 2 i mentioned above
hope i helped
GL
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| Ujk
Forum Guru
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 3
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| keepgoing
Forum Guru
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yes 3
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| medocuk
IM-RES
Topics: 26
Posts: 1,467
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Hey thanks guys. Thanks angel doctor for thr detailed explanation.yes the reasoning helped a lot. Good luck to all of you.
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