Question 1

What neurological deficit would most likely result from damage to cells in the posterior gray horns of the spinal cord?

Accepted Answer

Impaired sensory perception such as touch and proprioception

Question 2

Which part of the brain is primarily responsible for the formation, absorption, and circulation of cerebrospinal fluid (CSF)?

Accepted Answer

Choroid plexus

Question 3

At which point in the brain do the upper motor neurons of the corticospinal tracts decussate?

Accepted Answer

Medulla oblongata

Question 4

Which cranial nerves carry both motor and sensory fibers?

Accepted Answer

Trigeminal, facial, glossopharyngeal, and vagus nerves

Question 5

Which tract in the spinal cord is responsible for transmitting pain and temperature sensations?

Accepted Answer

Spinothalamic tract

Question 6

Which lobe of the brain is most involved in complex mental functions and is associated with behavior, conscience, and personality?

Accepted Answer

Frontal lobe

Question 7

A patient presents with loss of fine touch and proprioception on the right side of the body. Which tract is most likely damaged?

Accepted Answer

Right dorsal column-medial lemniscus pathway

Question 8

Which equation best represents the calculation of cerebral perfusion pressure (CPP)?

Accepted Answer

$$CPP = MAP - ICP$$

Question 9

Which structure is the site of decussation for the lateral corticospinal tract?

Accepted Answer

Medulla oblongata (pyramidal decussation)

Question 10

Which area of the brain is most associated with emotion?

Accepted Answer

Limbic system

Question 11

Damage to the Broca's area would most likely result in which clinical presentation?

Accepted Answer

Difficulty in producing fluent speech

Question 12

Which of the following best describes the function of the hypothalamus?

Accepted Answer

Control of homeostasis, including temperature, hunger, and endocrine functions

Question 13

Which equation correctly represents the relationship between the rate of CSF formation ($$F$$), absorption ($$A$$), and net change ($$N) in $$CSF volume?

Accepted Answer

$$N = F - A$$

Question 14

Which of the following is TRUE regarding the posterior root of a spinal nerve?

Accepted Answer

It contains only sensory fibers

Question 15

A patient has a lesion in the right optic tract. Which visual field defect would you expect?

Accepted Answer

Left homonymous hemianopia

Question 16

Which of the following best describes the function of the cerebellum?

Accepted Answer

Coordination of voluntary movements and balance

Question 17

Which equation represents the calculation of total spinal nerve pairs ($$N) $$given cervical ($$C$$), thoracic ($$T$$), lumbar ($$L$$), sacral ($$S$$), and coccygeal ($$Co) $$pairs?

Accepted Answer

$$N = C + T + L + S + Co$$

Question 18

Which of the following is a function of the parietal lobe?

Accepted Answer

Integration of sensory information and spatial awareness

Question 19

Which structure is responsible for the relay and processing of sensory information to the cerebral cortex?

Accepted Answer

Thalamus

Question 20

Which equation best represents the calculation of conduction velocity ($$v) in a $$myelinated axon, given the length ($$l) $$and time ($$t) $$for an impulse to travel?

Accepted Answer

$$v = \frac{l}{t}$$

Anatomy & Physiology: Central Nervous System and Spinal Cord Study Guide

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