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ATI LPN · Medical Surgical Nursing · Medical Surgical Neurology

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

The corpus callosum is a:

A. source of hypothalamic hormones

B. neural pathway that connects the right and left hemispheres

C. part of the neocortex

D. structure in the cerebellum

Expert Explanatory Rationale

Correct Answer: neural pathway that connects the right and left hemispheres

Question 2 of 5

Which statement concerning the generation of an action potential is correct?

A. When the membrane potential in the soma/axon hillock dips below 'threshold,' an action potential is initiated

B. The action potential is initiated in synaptic boutons

C. The least number of voltage-gated sodium channels in an axon is found near the node of Ranvier

D. Once an action potential is initiated, it will always run its course to completion

Expert Explanatory Rationale

Correct Answer: Once an action potential is initiated, it will always run its course to completion

Question 3 of 5

The outermost layer of the meninges, providing protection and cushioning for the brain, is called the:

A. Pia mater

B. Dura mater

C. Arachnoid mater

D. Subarachnoid mater

Expert Explanatory Rationale

Correct Answer: Dura mater

Question 4 of 5

Lobe that contains the primary motor area that enables voluntary control of skeletal muscle movements:

A. parietal lobe

B. temporal lobe

C. occipital lobe

D. frontal lobe

Expert Explanatory Rationale

Correct Answer: frontal lobe

Question 5 of 5

The nurse is caring for a patient being treated with an intraaortic balloon pump. Which intervention is most important to include in the patientâ€™s plan of care?

A. Turning side to side every 2 hours

B. Assessing peripheral pulses

C. Padding bony prominences

D. Applying splint to affected limb

Expert Explanatory Rationale

Correct Answer: Assessing peripheral pulses

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