Question 1

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

Accepted Answer

Dorsal column-medial lemniscal pathway

Question 2

Which cranial nerve is responsible for transmitting visual information from the retina to the brain?

Accepted Answer

Optic nerve (II)

Question 3

A lesion in the left precentral gyrus would most likely result in which of the following deficits?

Accepted Answer

Paralysis of voluntary movement on the right side of the body

Question 4

Which structure acts as the relay station for most sensory information traveling to the cerebral cortex?

Accepted Answer

Thalamus

Question 5

The parasympathetic division of the autonomic nervous system is characterized by which of the following effects?

Accepted Answer

Decreased heart rate and increased digestive activity

Question 6

Which equation best represents the calculation of the conduction velocity ($$v) of a $$nerve fiber, given the distance ($$d) $$and time ($$t) it $$takes for an action potential to travel?

Accepted Answer

$$v = d \div t$$

Question 7

A patient is unable to move their tongue and has difficulty swallowing. Which cranial nerve is most likely affected?

Accepted Answer

Hypoglossal nerve (XII)

Question 8

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

Accepted Answer

Coordination of voluntary movements and balance

Question 9

If the dorsal root of a spinal nerve is severed, what deficit would most likely occur?

Accepted Answer

Loss of sensory function

Question 10

Which of the following structures is NOT part of the limbic system?

Accepted Answer

Caudate nucleus

Question 11

A patient with damage to the Broca's area would most likely experience which symptom?

Accepted Answer

Difficulty producing speech

Question 12

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

Accepted Answer

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

Question 13

Which of the following best describes the function of the reticular formation?

Accepted Answer

Controls arousal and consciousness

Question 14

A patient presents with loss of pain and temperature sensation on the left side of the body below the level of a right-sided spinal cord lesion. Which tract is most likely affected?

Accepted Answer

Spinothalamic tract

Question 15

Which cranial nerve innervates the lateral rectus muscle of the eye, allowing for abduction?

Accepted Answer

Abducens nerve (VI)

Question 16

Which of the following is a function of the sympathetic division of the autonomic nervous system?

Accepted Answer

Increases heart rate

Question 17

Which structure separates the frontal and parietal lobes of the brain?

Accepted Answer

Central sulcus

Question 18

A patient has difficulty with balance and coordination after a stroke. Which brain region is most likely affected?

Accepted Answer

Cerebellum

Question 19

Which of the following best describes the function of the dorsal root ganglion?

Accepted Answer

Contains cell bodies of sensory neurons

Question 20

Which equation best represents the relationship between the number of synapses ($$S) in a $$reflex arc and the number of neurons ($$n) $$involved?

Accepted Answer

$$S = n - 1$$

Anatomy & Physiology Study Guide: Nervous System, Senses, and Neural Pathways

Guida di studio - Domande di pratica

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