Which of the Following Statements Correctly Describes Peristalsis

question 14

Multiple Choice

Which of the following statements correctly describes peristalsis?

• A) It is a process of fat emulsification in the small intestine.
• B) It triggers voluntary control of the urethral sphincters regulating urination.
• C) It causes the transport of nutrients to the liver through the hepatic portal vessel.
• D) It results from smooth muscle contractions that move food along the esophagus.

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Definitions:

Contractions

The action of muscle fibers shortening or tensing, which can produce movement or apply force, a fundamental process in muscle function.

Sarcoplasmic Reticulum

A specialized type of smooth endoplasmic reticulum found in muscle cells, involved in calcium storage and release for muscle contraction.

Active Transport

The movement of molecules across a cell membrane from a region of lower concentration to one of higher concentration, requiring energy.

Muscle Hypertrophy

The increase in muscle size and mass due to exercise, particularly strength training.