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ATI LPN · Anatomy and Physiology · Nervous System Questions

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

When is the transmission of signal electrical?

A. when signal travels along the axon

B. signal flows from one nerve cell to another

C. never

D. always

Correct Answer: when signal travels along the axon

Question 2 of 5

The lumbar plexus

A. Is immediately medial to the inferior vena cava

B. Is formed from the posterior rami

C. Is derived from the last three lumbar nerves

D. The femoral nerve is formed from L2,3,4

Correct Answer: The femoral nerve is formed from L2,3,4

Question 3 of 5

Which of the following is a genetic disease that causes neurons in the brain to waste away and die?

A. Multiple sclerosis

B. Polio

C. Encephalitis

D. Huntington disease

Correct Answer: Huntington disease

Question 4 of 5

Corneal sensation synapses in which ganglion

A. Pterygopalatine

B. Geniculate

C. Otic

D. Trigeminal

Correct Answer: Trigeminal

Question 5 of 5

The ophthalmic division of the trigeminal nerve

A. Enters the face via the inferior orbital fissure

B. Supplies sympathetic fibres to constrictor papillae muscles

C. Supplies sensation to the forehead and upper eyelid, excluding the orbit

D. Gives five branches, two of which contain sympathetic as well as sensory fibres

Correct Answer: Gives five branches, two of which contain sympathetic as well as sensory fibres

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