What Structure Drains Cerebrospinal Fluid into the Fourth Ventricle

question 10

Multiple Choice

What structure drains cerebrospinal fluid into the fourth ventricle?

• A) Cerebral aqueduct (of Sylvius)
• B) Interventricular foramen (of Monro)
• C) Lateral foramina (of Luschka)
• D) Cisterna magna

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Definitions:

Mitral Valve

A valve in the heart that lies between the left atrium and the left ventricle, which regulates blood flow from the upper to the lower chamber on the left side.

Left Ventricle

The lower left chamber of the heart that receives oxygenated blood from the left atrium and pumps it out under high pressure to the body through the aorta.

Left Atrium

The upper left chamber of the heart that receives oxygenated blood from the pulmonary veins and pumps it into the left ventricle.

QRS Segment

Part of an electrocardiogram (ECG) representing the depolarization of the heart's ventricles, which precedes the contraction of the ventricles.