Question 1

Which of the following best describes the function of the anterolateral pathways in the central nervous system?

Accepted Answer

They carry pain, temperature, and crude touch sensations from the body to the brain.

Question 2

The Suprachiasmatic nucleus is located in which region of the brain, and what is its primary function?

Accepted Answer

Located in the hypothalamus; controls circadian rhythms.

Question 3

Which cranial nerves are found in the pons, and what is a key function of this region?

Accepted Answer

Cranial nerves 5-7; involved in facial sensation and movement.

Question 4

The arbor vitae is a structure found in the cerebellum. What is its primary function?

Accepted Answer

It coordinates voluntary motor movements by relaying information within the cerebellum.

Question 5

Which of the following best describes the function and location of ependymal cells?

Accepted Answer

Located lining the ventricles and central canal; produce and circulate cerebrospinal fluid.

Question 6

Which layer of the meninges contains cerebrospinal fluid, and what is its primary function?

Accepted Answer

Arachnoid mater; houses cerebrospinal fluid and acts as a cushion for the brain.

Question 7

The dorsal root ganglia contain which type of neurons, and what is their function?

Accepted Answer

Sensory neurons; transmit sensory information from the periphery to the CNS.

Question 8

Which anatomical structure separates the cerebral hemispheres, and what is its significance?

Accepted Answer

Longitudinal fissure; separates the left and right cerebral hemispheres.

Question 9

Which of the following best defines the cerebrum and explains why it is called the 'executive suite'?

Accepted Answer

The cerebrum is the largest part of the brain, responsible for higher-order functions such as reasoning, planning, and conscious thought.

Question 10

Which statement accurately compares the cerebral cortex of the left and right hemispheres?

Accepted Answer

The left hemisphere is typically dominant for language, while the right is more involved in spatial and creative tasks.

Question 11

Which tract is responsible for transmitting pain and temperature sensations, and where is it located?

Accepted Answer

Lateral spinothalamic tract; located in the spinal cord.

Question 12

Which of the following best describes the function of the hypothalamus and why it is referred to as a 'thermostat'?

Accepted Answer

It controls body temperature, hunger, and hormone release, acting as the body's thermostat.

Question 13

Where is white matter found in the brain and spinal cord, and what is its primary function?

Accepted Answer

White matter is found deep in the brain and superficial in the spinal cord; it transmits signals between different regions.

Question 14

A patient presents with quadriplegia after a spinal cord injury. Where would the transection most likely have occurred?

Accepted Answer

At the cervical region of the spinal cord.

Question 15

Which of the following best defines spastic paralysis?

Accepted Answer

Increased muscle tone and exaggerated reflexes due to upper motor neuron damage.

Question 16

Which area of the brain is primarily responsible for the production of speech?

Accepted Answer

Broca's area.

Question 17

Which structure is part of the basal nuclei and what is its function?

Accepted Answer

Globus Pallidus; regulates voluntary motor movements.

Question 18

Which of the following is a characteristic of REM sleep, and how is it affected by aging?

Accepted Answer

REM sleep involves rapid eye movements and decreases in duration as people age.

Question 19

Which type of brain wave is common in children but not in adults, and what does its amplitude represent?

Accepted Answer

Delta waves; amplitude represents the intensity of electrical activity.

ANP CNS Study Guide: Step-by-Step Guidance for Key Concepts

Study Guide - Practice Questions