Subject: Anatomy and Physiology

#217

In a feedback loop, the receptor:

A) Sends commands

B) Detects changes

C) Executes responses

D) Processes information

Answer:   B

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#218

Which component is the control center in thermoregulation?

A) Sweat glands

B) Hypothalamus

C) Blood vessels

D) Skin receptors

Answer:   B

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#219

Insulin secretion to lower blood sugar is:

A) Positive feedback

B) Negative feedback

C) Feedforward

D) Homeostatic failure

Answer:   B

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#220

Which structure acts as an effector in blood pressure regulation?

A) Baroreceptors

B) Heart

C) Brainstem

D) Kidneys

Answer:   B

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#221

Oxytocin during labor is:

A) Negative feedback

B) Positive feedback

C) Neutral feedback

D) Irrelevant to homeostasis

Answer:   B

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#222

Which feedback mechanism is more common?

A) Positive

B) Negative

C) Both equally

D) Neither

Answer:   B

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#223

Shivering to generate heat is controlled by:

A) Positive feedback

B) Negative feedback

C) Feedforward

D) Behavioral response

Answer:   B

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#224

Which is NOT a component of a feedback loop?

A) Receptor

B) Stimulus

C) Control center

D) Effector

Answer:   B

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