Question

one of the descriptions below is from the perspective of physiological study, the rest are from an anatomical perspective. select the description below that comes from physiological perspective.

the contraction of smooth muscle in blood vessels (vasoconstriction) can reduce the flow of blood through the vessel.

the pancreas lies deep to the stomach within the abdominal cavity.

the chambers of the heart and blood vessels leading to and from the heart are separated by valves composed of fibrous connective tissue.

the skull is formed by 22 facial and cranial bones.

Explanation:

Anatomy focuses on the structure (parts, location, composition) of body parts, while physiology focuses on the function (how parts work).

• "The pancreas lies deep to the stomach..." describes location (anatomical).
• "The chambers of the heart... separated by valves..." describes structure (anatomical).
• "The skull is formed by 22 bones..." describes composition (anatomical).
• "The contraction of smooth muscle... reduce blood flow" describes the function of smooth muscle in blood vessels (physiological).

Answer:

The contraction of smooth muscle in blood vessels (vasoconstriction) can reduce the flow of blood through the vessel.