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ATI LPN · Anatomy and Physiology · Test Questions on Autonomic Nervous System MCAT

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

The interior surface of the membrane of a nonconducting neuron differs from the exterior surface in that it is:

A. negatively charged and contains less sodium

B. positively charged and contains less sodium

C. negatively charged and contains more sodium

D. positively charged and contains more sodium

Correct Answer: negatively charged and contains less sodium

Question 2 of 5

Which of the parts of nervous tissue transmits an action potential?

A. Axon

B. Cell body

C. Dendrite

D. Neuroglia

Correct Answer: Axon

Question 3 of 5

The primary motor area is where commands to begin.

A. Cardiac muscle

B. Skeletal muscles

C. Smooth muscle

D. Skin

Correct Answer: Skeletal muscles

Question 4 of 5

A stimulus will begin an action potential by

A. Opening sodium channels into the axon.

B. Opening potassium channels into the axon.

C. Closing sodium channels into the axon.

D. Closing potassium channels into the axon.

Correct Answer: Opening sodium channels into the axon.

Question 5 of 5

The hypothalamus is a key component of the endocrine system, controlling the release of hormones from the:

A. Pituitary gland

B. Thyroid gland

C. Adrenal glands

D. Pancreas

Correct Answer: Pituitary gland

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