Beginner Fourth Ventricle Quiz

Q1. Where is the fourth ventricle located?

• Within the diencephalon
• Inside the temporal lobe
• Between the two cerebral hemispheres
• Between the pons and upper medulla anteriorly and the cerebellum posteriorly

Q2. Which channel carries cerebrospinal fluid into the fourth ventricle from the third ventricle?

• Median aperture
• Central canal
• Interventricular foramen
• Cerebral aqueduct

Q3. What is the floor of the fourth ventricle called?

• Rhomboid fossa
• Interpeduncular fossa
• Posterior perforated substance
• Suprasellar cistern

Q4. Which structures form the floor of the fourth ventricle?

• Dorsal pons and open medulla
• Cerebral hemispheres
• Thalamus and hypothalamus
• Corpus callosum and fornix

Q5. Which structure lies posterior to the fourth ventricle?

• Optic chiasm
• Pituitary gland
• Caudate nucleus
• Cerebellum

Q6. Through which opening does CSF leave the fourth ventricle in the midline?

• Cerebral aqueduct
• Interventricular foramen
• Median aperture
• Optic recess

Q7. What are the paired lateral openings of the fourth ventricle called?

• Optic foramina
• Jugular foramina
• Interventricular foramina
• Lateral apertures

Q8. Which structure produces most of the CSF associated with the fourth ventricle?

• Facial colliculus
• Medial eminence
• Choroid plexus
• Median sulcus

Q9. What does the fourth ventricle become inferiorly near the closed medulla?

• Cavernous sinus
• Lateral ventricle
• Cerebral aqueduct
• Central canal

Q10. What is the normal destination of most CSF leaving the fourth ventricular apertures?

• Cavernous sinus directly
• Subdural space
• Subarachnoid space
• Epidural space