CLINICAL MEDICINE

MEDICINE

NEUROLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which two foraminas in the fourth ventricle open into cerebellopontine cistern?
A
Lateral apertures of Luschka
B
Magendie
C
sylvian
D
none of them
Explanation: 

Detailed explanation-1: -The two other openings of the fourth ventricle are the lateral apertures (also called the foramina of Luschka), one on the left and one on the right, which drain cerebrospinal fluid into the cerebellopontine angle cistern.

Detailed explanation-2: -The lateral apertures (of Luschka) (also known as the foramina of Luschka) are two of the foramina in the ventricular system and link the fourth ventricle to the cerebellopontine cistern.

Detailed explanation-3: -The two other openings of the fourth ventricle are termed the foramina of Luschka or lateral apertures, one of each on left and right sides. The foramen of Magendie is located in the midline in the inferior aspect of the roof of the fourth ventricle, caudal to the nodule of the cerebellum.

Detailed explanation-4: -The fourth ventricle communicates with the subarachnoid space through the lateral foramen of Luschka, located near the flocculus of the cerebellum, and through the median foramen of Magendie, located in the roof of the ventricle. Most of the CSF outflow passes through the medial foramen.

Detailed explanation-5: -Background: The German Anatomist Hubert Von Luschka first described the foramina of Luschka (FOL) in 1855 as lateral holes in the fourth ventricle.

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