The neuotransmitter acetylcholine is released from presynaptic neurons in response to a nerve impulse and diffuses across the synaptic cleft or neuromuscular junction to a receptor on another neuron or a muscle cell. The nicotinic acetylcholine receptor is a pentamer containing four types of subunits, α2βγδ. Place the following in the correct order, from the release of acetylcholine from a neuron to receptor resensitization. Answer Banktwo acetylcholine bind to a receptor; the gate opensacetylcholine diffuses across synaptic cleft or neuromuscular junctionsmall cations pass through the open pore of the receptor the plasma membrane of the target cell is depolarizedexcited presynaptic neuron releases acetylcholineacetylcholine is released from the binding sitestwo acetylcholine are tightly bound to a receptor; the gate is closedone acetylcholine binds to a receptor; the gate is closed

The neuromuscular junction plays a vital role in the transmission of signals from nerve cells to…

Answered: The neuotransmitter acetylcholine is…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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The neuotransmitter acetylcholine is released from presynaptic neurons in response to a nerve impulse and diffuses across the synaptic cleft or neuromuscular junction to a receptor on another neuron or a muscle cell. The nicotinic acetylcholine receptor is a pentamer containing four types of subunits, α2βγδ. Place the following in the correct order, from the release of acetylcholine from a neuron to receptor resensitization.

Answer Bank
two acetylcholine bind to a receptor; the gate opens
acetylcholine diffuses across synaptic cleft or neuromuscular junction
small cations pass through the open pore of the receptor the plasma membrane of the target cell is depolarized
excited presynaptic neuron releases acetylcholine
acetylcholine is released from the binding sites
two acetylcholine are tightly bound to a receptor; the gate is closed
one acetylcholine binds to a receptor; the gate is closed

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