Ventricular System and Coronal Sections

Question 1

The cortex is of uniform thickness.
A. True.
B. False.

Answer 1

False

Question 2

This structure is usually considered a:
A. Decussation.
B. Commissure.
C. Tract.
D. Funiculus.
E. Fasciculus.

Answer 2

Commissure

Question 3

What will occur because this area (arrow) is obstructed?
A. Hydrocephalus.
B. Ventricles will dilate.
C. Mental deterioration.
D. More CSF will be produced than returned to the vascular system.
E. All of the above.

Answer 3

All of the above

Question 4

What is the functional significance of these white structures?
A. Produce CSF.
B. Store CSF.
C. Transfer CSF to venous system.
D. Transfer CSF to the lymphatics

Answer 4

Transfer CSF to venous system

Question 5

What will be the effect of infection of the meninges, such as the meningitis shown here, on the sensory innervation of the dura?
A. Anesthesia.
B. Pain.
C. Both.
D. Neither.

Answer 5

Pain

Question 6

What does the ventricular system represent?
A. Neural tube.
B. Neural canal.
C. Neuropore.
D. Rathke’s pouch.

Answer 6

Neural canal

Question 7

Cerebrospinal fluid is produced by:
A. Pial cells.
B. Choroid plexus cells.
C. Ependymal cells.
D. Fibroblasts.
E. Arachnoid granulations (=arachnoid villi or pacchionian granulations).

Answer 7

Choroid plexus cells.

Question 8

The occipital horns of the lateral ventricles communicate with the fourth ventricle (both are injected with blue) via the:
A. >ventricle III >foramen of Monro >aqueduct > ventricle IV.
B. >aqueduct > ventricle III > ventricle IV.
C. >foramen of Monro > ventricle III > aqueduct > ventricle IV.
D. >aqueduct> ventricle IV >ventricle III.

Answer 8

> foramen of Monro > ventricle III > aqueduct > ventricle IV.

Question 9

The cerebral cortex is a sheet of gray matter that covers white matter. What does the white matter represent?
A. Axons and glial cells.
B. Axons only.
C. Neuron cell bodies only.
D. Neuron cell bodies and glial cells.

Answer 9

Axons and glial cells.

Question 10

What will result if these structures do not function?
A. Microcephalus.
B. Decreased CSF production.
C. Increased subarchnoid space.
D. Increased intracranial pressure and death from pressure on vital cardiac and respiratory centers.

Answer 10

Increased intracranial pressure and death from pressure on vital cardiac and respiratory centers.

Question 11

This is the floor of the IV ventricle. Which regions of the brain are associated with the IV ventricle? Hint: think of the embryological development.
A. Medulla.
B. Pons and Medulla.
C. Pons and Medulla and Cerebellum.
D. Midbrain, Pons, and Medulla.

Answer 11

Pons and Medulla and Cerebellum

Question 12

Obstruction of the cerebral aqueduct would result in dilation of which of the following?
A. Lateral ventricles
B. Third ventricle
C. Fourth ventricle
D. A and B
E. A, B, and C

Answer 12

A and B

Question 13

Which of the following structures does not border on the third ventricle?
A. Thalamus
B. Hypothalamus
C. Fourth ventricle
D. Interventricular foramen
E. Aqueduct

Answer 13

Fourth ventricle