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ATI LPN · Medical Surgical Nursing · Neurological Questions

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Cerebral tracts that carry information from the cerebrum to the lower parts of the central nervous system are known as:

A. Association tracts
B. Projection tracts
C. Commissural tracts
D. Relay tracts

Expert Explanatory Rationale

Correct Answer: Projection tracts

Question 2 of 5

In comparison to other G-protein coupled second messenger signaling pathways (like metabotropic neurotransmitter receptors) the situation in photopigment transduction is different because:

A. the stimulus (light) causes a change in receptor protein conformation
B. the G-protein response involves binding GTP
C. in response to stimulus (light), the level of second messenger decreases
D. the consequent increase in ion channel conductance

Expert Explanatory Rationale

Correct Answer: in response to stimulus (light), the level of second messenger decreases

Question 3 of 5

Satellite cells and Schwann cells are associated with the:

A. Central nervous system
B. Peripheral nervous system
C. Autonomic nervous system
D. Somatic nervous system

Expert Explanatory Rationale

Correct Answer: Peripheral nervous system

Question 4 of 5

The sciatic nerve, the longest nerve in the human body, is derived from which plexus?

A. Cervical plexus
B. Brachial plexus
C. Lumbar plexus
D. Sacral plexus

Expert Explanatory Rationale

Correct Answer: Sacral plexus

Question 5 of 5

A 14-year-old boy is brought to the pediatrician by his mother because of a 1-hour episode of intermittent jerking movements that began around the time he woke up this morning. He describes the movement as jerky, affecting both upper extremities and upper body, and arrhythmic. During the episode, the patient did not lose consciousness. The patient admits to sleeping approximately 4 hours per night due to upcoming final examinations. Physical examination is completely normal. Which of the following is the best initial treatment for this patient’s symptoms?

A. Valproic acid
B. Ropinirole
C. Primidone
D. Trihexyphenidyl

Expert Explanatory Rationale

Correct Answer: Valproic acid

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