Question 1

Which structure is primarily responsible for conscious thought, intellect, and memory in the adult brain?

Accepted Answer

Cerebrum

Question 2

A patient presents with loss of coordination and cannot stand without assistance after a head injury. Which brain region is most likely affected?

Accepted Answer

Cerebellum

Question 3

Which of the following is NOT a function of the hypothalamus?

Accepted Answer

Processing visual and auditory reflexes

Question 4

The blood-brain barrier (BBB) is primarily formed by:

Accepted Answer

Astrocytes and tight junctions between endothelial cells

Question 5

Which dural fold separates the cerebrum from the cerebellum and contains the transverse sinus?

Accepted Answer

Tentorium cerebelli

Question 6

Cerebrospinal fluid (CSF) is produced by the choroid plexus at a rate of approximately:

Accepted Answer

$$500\ \mathrm{mL/day}$$

Question 7

A stroke (cerebrovascular accident) most directly results from:

Accepted Answer

Disruption of blood supply to a portion of the brain

Question 8

Which of the following substances can freely diffuse across the blood-brain barrier?

Accepted Answer

Oxygen ($$O_2)$$

Question 9

The subarachnoid space is located between which two layers of the cranial meninges?

Accepted Answer

Arachnoid mater and pia mater

Question 10

Which brain region is responsible for relaying and processing sensory information, except olfactory signals?

Accepted Answer

Thalamus

Question 11

A patient with damage to the medulla oblongata may experience problems with which of the following functions?

Accepted Answer

Heart rate and blood pressure regulation

Question 12

Which of the following is a function of cerebrospinal fluid (CSF)?

Accepted Answer

Cushions neural structures from physical trauma

Question 13

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

Accepted Answer

Medulla oblongata – regulation of autonomic functions

Question 14

If the superior sagittal sinus is blocked, which process would be most directly affected?

Accepted Answer

Absorption of CSF into venous circulation

Question 15

Which equation best represents the rate of CSF production per hour, given a daily production of $$500\ \mathrm{mL}$$?

Accepted Answer

$$\frac{500\ \mathrm{mL}}{24\ \mathrm{hr}} \approx 20.8\ \mathrm{mL/hr}$$

Question 16

Which of the following is TRUE regarding the blood-CSF barrier?

Accepted Answer

It allows the chemical composition of blood and CSF to differ

Question 17

A patient with a ruptured vessel in the brain is experiencing rapid neuron death. What is the most likely diagnosis?

Accepted Answer

Cerebrovascular accident (stroke)

Question 18

Which of the following best describes the role of astrocytes in the blood-brain barrier?

Accepted Answer

They release chemicals that control the permeability of endothelial cells

Question 19

Which of the following is a correct pathway for the circulation of cerebrospinal fluid (CSF)?

Accepted Answer

Choroid plexus → ventricles → central canal → subarachnoid space

Question 20

Which of the following cranial meninges is directly attached to the surface of the brain and follows its grooves?

Accepted Answer

Pia mater

Chapter 14: The Brain and Cranial Nerves – Anatomy & Physiology Study Notes

Study Guide - Practice Questions