Which of the Following Is Incorrect About Stimulation of Striated

question 26

Multiple Choice

Which of the following is incorrect about stimulation of striated muscle contraction by the neuromuscular junction?

• A)Acetylcholine is stored in vesicles in the axon terminal.
• B)Acetylcholine is secreted in response to a nerve action potential.
• C)Acetylcholine binds to soluble receptors in the extracellular environment.
• D)Acetylcholine binding stimulates sodium ions to enter the muscle cell.
• E)T tubules carry action potentials into the muscle cell.

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Definitions:

Ancestors Of Amphibians

Early vertebrates from which modern amphibians are descended, likely evolving in the Devonian period.

Lobe-Finned Fish

Jawed fish with fins supported by internal bones; for example, a coelacanth or lungfish.

Homo Habilis

An extinct species of early human that lived approximately 2.1 to 1.5 million years ago, recognized for its use of stone tools.

Stone Tools

Prehistoric tools made from stone by early humans for cutting, scraping, and other activities.