Questions: 2 Multiple Choice 1 point Which of the following structures conencts the third ventricle to the fourth ventricle? Cerebral aqueduct Choriod plexus Interventricular foramen Falx cerebri

2 Multiple Choice 1 point Which of the following structures conencts the third ventricle to the fourth ventricle? Cerebral aqueduct Choriod plexus Interventricular foramen Falx cerebri
Transcript text: 2 Multiple Choice 1 point Which of the following structures conencts the third ventricle to the fourth ventricle? Cerebral aqueduct Choriod plexus Interventricular foramen Falx cerebri
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Solution

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The answer is the first one: Cerebral aqueduct.

Explanation for each option:

  • Cerebral aqueduct: This is the correct answer. The cerebral aqueduct, also known as the aqueduct of Sylvius, is a narrow channel that connects the third ventricle to the fourth ventricle in the brain, allowing the flow of cerebrospinal fluid between these two ventricles.

  • Choroid plexus: This is incorrect. The choroid plexus is a network of cells that produce cerebrospinal fluid in the ventricles of the brain, but it does not connect the third and fourth ventricles.

  • Interventricular foramen: This is incorrect. The interventricular foramen, also known as the foramen of Monro, connects the lateral ventricles to the third ventricle, not the third to the fourth.

  • Falx cerebri: This is incorrect. The falx cerebri is a fold of dura mater that separates the two cerebral hemispheres, and it is not involved in connecting the ventricles.

In summary, the cerebral aqueduct is the structure that connects the third ventricle to the fourth ventricle.

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