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2 years ago

During the transmission of signals across a neuromuscular junction, which of the following happens first?

Biology

2 answers:

sergejj [24]2 years ago

6 0

Answer:

C. Synaptic vesicles release acetylcholine molecules.

Explanation:

A neuromuscular junction is the junction between the terminal part of a motor axon and a motor plate (or neuromuscular synapse), which is the region of the plasma membrane of a muscle fiber (the sarcolemma) where the nerve and muscle meet allowing to trigger muscle contraction.

At the neuromuscular junction, the neurotransmitter used is acetylcholine, which is released by the synaptic vesicles at the beginning of the signal transmission process through the neuromuscular junction. The nerve fiber branches off at the end to form the end plate. which invaginates into the muscle fiber, but rests entirely on the outside of the membrane.

Gre4nikov [31]2 years ago

4 0

Answer:

The correct answer is A acetylcholine binds to a receptor protein on the motor end plate

Explanation:

The neurotransmitter acetylcholine is released by the motor neuron during the transmission of signals across a neuromuscular junction.

The released acetylcholine then diffuses the synaptic cleft and binds to the receptor protein present on the membrane of muscle fibre.

This ultimately result in the influx of sodium ion inside the muscle cell thereby causing depolarization to generate an action potential.

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2 years ago

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Phantasy [73]

Answer:

0.1

Explanation:

The Net Reproduction per individual per unit time (r) can be calculated as (births-deaths)/population size

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Population size of mice = 1,000; Birth = 500; Death = 400,

Net reproduction rate (r) = (births-deaths)/population size

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2 years ago

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ankoles [38]

Answer:

Central and Peripheral

Explanation:

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The below diagram provides a schematic view of the role of each sub-division of the Nervous System.

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2 years ago

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nevsk [136]

Answer:

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Explanation:

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2 years ago

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-Dominant- [34]

This hole thing you all need to do this on your own you we all are in need of help like instead of giving the answers you should explain in many different ways for people to understand what there supposed to do

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