Sympathomimetic agents activate nicotinic receptors . muscarinic receptors . adrenergic receptors . somatotrophic receptors . cholinergic receptors .
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The question mentions the following receptors: nicotinic receptors, muscarinic receptors, adrenergic receptors, somatotrophic receptors, and cholinergic receptors. Show more…
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Asma V.
92. Nicotinic receptors ____ and muscarinic receptors ____. A. Open chemically gated sodium ion channels; are normally activated by acetylcholine. B. Open chemically gated potassium ion channels; are normally activated by acetylcholine. C. Open chemically gated sodium ion channels; are normally activated by epinephrine. D. Open chemically gated potassium ion channels; are normally activated by norepinephrine. E. Open chemically gated sodium ion channels; are normally activated by norepinephrine. 93. Why are parasympathetic effects localized and short-lived? A. Muscarinic receptors are deactivated by norepinephrine. B. Acetylcholine is inactivated at the synapse by acetylcholinesterase. C. Norepinephrine hyperpolarizes the postganglionic membrane. D. Norepinephrine is inactivated at the synapse by monoamine oxidase. E. Epinephrine blocks the muscarinic receptors.
Adi S.
Nicotinic receptors respond to epinephrine and norepinephrine, opening chemically-gated sodium ion channels. They are found at neuroeffector junctions of both the parasympathetic and sympathetic nervous systems.
Nicholas M.
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