Question 1

Which of the following best describes the function of Schwann cells in the peripheral nervous system?

Accepted Answer

They produce myelin sheaths around axons.

Question 2

A patient suffers a spinal cord injury that damages the dorsal root of a spinal nerve. Which function is most likely to be impaired?

Accepted Answer

Sensory input from the periphery

Question 3

Which of the following correctly matches a brain structure with its primary function?

Accepted Answer

Thalamus – relay of sensory information

Question 4

Which of the following is NOT a component of a typical reflex arc?

Accepted Answer

Cerebral cortex

Question 5

A patient is unable to feel touch on the skin of their right hand but can still move the hand. Which spinal cord tract is most likely damaged?

Accepted Answer

Ascending tracts: sensory

Question 6

Which of the following best defines a 'plexus' in the context of the nervous system?

Accepted Answer

A network of interlacing nerves or nerve fibers

Question 7

If the ventral root of a spinal nerve is severed, what is the most likely result?

Accepted Answer

Loss of motor function in the affected area

Question 8

Which lobe of the cerebrum is primarily responsible for processing visual information?

Accepted Answer

Occipital lobe

Question 9

A reflex that causes you to withdraw your hand from a hot surface is best classified as which type of reflex?

Accepted Answer

Somatic (flexor/withdrawal) reflex

Question 10

Which of the following structures is responsible for producing cerebrospinal fluid (CSF)?

Accepted Answer

Choroid plexus

Question 11

A patient presents with loss of coordination and balance. Which brain structure is most likely affected?

Accepted Answer

Cerebellum

Question 12

Which of the following best describes the function of oligodendrocytes?

Accepted Answer

They form myelin sheaths in the central nervous system.

Question 13

Which of the following is the correct order of the meninges from outermost to innermost?

Accepted Answer

Dura mater, arachnoid mater, pia mater

Question 14

A patient has a tumor compressing the hypothalamus. Which of the following functions is most likely to be disrupted?

Accepted Answer

Regulation of body temperature

Question 15

Which of the following best describes the function of the axon hillock?

Accepted Answer

It initiates action potentials.

Question 16

If a person has damage to the parietal lobe, which of the following functions is most likely to be affected?

Accepted Answer

Integration of sensory information such as touch and spatial awareness

Question 17

Which of the following equations correctly represents the relationship between the number of spinal nerves and the number of vertebrae in the human body?

Accepted Answer

$$n_{spinal\ nerves} = n_{vertebrae} + 1$$

Question 18

Which of the following best explains why damage to the medulla oblongata can be life-threatening?

Accepted Answer

It regulates vital autonomic functions such as breathing and heart rate.

Question 19

A person touches a hot stove and immediately withdraws their hand. Which of the following best describes the type of reflex and the pathway involved?

Accepted Answer

Somatic (withdrawal) reflex; involves a spinal reflex arc

Question 20

Which of the following is a correct sequence of events in a typical reflex arc?

Accepted Answer

Receptor → sensory neuron → integration center → motor neuron → effector

Anatomy & Physiology Study Notes: Nervous System Structure and Function

Guida di studio - Domande di pratica

Study guide - Flashcard