In a negative feedback loop governing body temperature, which components are correctly identified? Receptors, control center, and effectors.

In a negative feedback loop governing body temperature, which components are correctly identified? Receptors, control center, and effectors.

• A. Receptors in skin/thermoreceptors detect temperature; the hypothalamus acts as the control center; effectors (sweat glands, blood vessels, skeletal muscles) adjust heat loss or production.
• B. Receptors detect temperature; brainstem is the control center; effectors modify hormones to adjust metabolism.
• C. Receptors in muscles detect temperature; the hypothalamus is the control center; effectors are only endocrine glands.
• D. Receptors in skin detect temperature; the control center is the adrenal gland; effectors are sweat glands.

Answer: (A)