Neuromuscular Junction and Curare Quiz

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9 Questions

What effect does pancuronium have on the body?

Partial blockade of ganglia and adrenal medulla

What is the duration of action of succinylcholine?

5 minutes

Which type of neuromuscular blocker is Curare?

Competitive blocker

What is the clinical use of competitive neuromuscular blockers?

Facilitating surgical manipulation

Competitive antagonism can only occur through reversible binding of the antagonist to the receptor site

False

Atropine competes with acetylcholine at muscarinic receptors, decreasing the stimulatory effect of acetylcholine on gastrointestinal motility

True

Hexamethonium prevents the effect of acetylcholine on nicotinic receptors in autonomic ganglia by binding to the ligand binding domain

False

Irreversible competitive antagonism occurs when the antagonist forms a strong bond with the receptor that dissociates very slowly or not at all

True

Functional antagonism occurs when the antagonist reduces the physiological response of the agonist by inducing the opposite response at the same receptor site

False

Test your knowledge about the history and effects of Curare on the neuromuscular junction, including its early medicinal uses and chemical structure. Explore its classification and related compounds.

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