A monkey is shot with a blow dart by a South American Indian.The blow dart is covered with curare.The monkey's muscles are paralyzed.What does curare do to the nervous system of the monkey (and to humans)?
A) prevents reuptake from occurring
B) blocks receptors, thereby preventing acetylcholine from affecting the neuron
C) mimics the effects of norepinephrine because of its similar chemical makeup
D) increases the amount of dopamine released into the synapse

Question

Quizplus · Accepted Answer

Curare blocks acetylcholine receptors, preventing the neurotransmitter from binding and causing muscle contractions. This results in muscle paralysis, as seen in the monkey in the scenario. This effect is also observed in humans who are given curare during surgical procedures to induce muscle relaxation.

A Monkey Is Shot with a Blow Dart by a South