Triggering of the Muscle Action Potential Occurs After

question 124

Multiple Choice

Triggering of the muscle action potential occurs after

• A) the nerve action potential jumps across the neuromuscular junction.
• B) acetylcholine binds to chemically gated channels in the end plate membrane.
• C) acetylcholinesterase binds to receptors on the end plate.
• D) calcium ion binds to channels on the end plate.
• E) Any of the above can produce an action potential in the muscle cell.

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Definitions:

Canyon Feature

A deep gorge, usually with a river flowing through it, formed by long-term erosion from water activity.

Lava Flow

The movement of molten rock that emerges from a volcano or fissure onto the Earth's surface, where it solidifies as it cools.

Dike Unit

It is a geological structure consisting of a major vertical or steeply-dipping sheet-like body of intruded igneous rock that cuts through older rocks.

Half-Lives

The period of time it takes for a radioactive substance to decrease to half its original amount.