Which of These Activities Is Involved in the Process of Muscle

question 264

Multiple Choice

Which of these activities is involved in the process of muscle relaxation

• A)Acetylcholinesterase promotes the concentration of acetylcholine to allow the muscle membrane to return to resting potential.
• B)Ca²⁺ is actively taken up by the lateral sacs of the sarcoplasmic reticulum when there is no longer a local action potential.
• C)The cross bridges from the thick filaments bind to the thin filaments and bend in such a way as to return the filaments to their original resting position.
• D)ATP becomes unavailable.

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Definitions:

Blood

A vital fluid in humans and animals that delivers necessary substances such as nutrients and oxygen to cells and transports metabolic waste products away.

Black Bile

One of the four humors in ancient and medieval medicine, believed to be associated with melancholy when present in excess.

Endocrine System

A network of glands and organs that produce, store, and secrete hormones into the bloodstream to regulate the body's metabolism, growth, and development.

Hormones

Chemical messengers produced by glands in the body that regulate physiological processes and behavior.