Question

Which one of the following plexus is a part of the central nervous system in the brain and consists of capillaries, ventricles, and ependymal cells?

• A. Celiac plexus
• B. Choroid plexus
• C. Cervical plexus
• D. Brachial plexus

Answer 1

The Correct Option is B

The question asked pertains to the identification of a plexus that is part of the central nervous system within the brain and comprises capillaries, ventricles, and ependymal cells. Let's evaluate the given options to identify the correct answer.

1. Celiac plexus: This is a complex network of nerves located in the abdomen, mainly involved with the functioning of internal organs like the stomach, liver, and kidneys. It is not part of the central nervous system in the brain.
2. Choroid plexus: This is located in the ventricles of the brain and is responsible for producing cerebrospinal fluid (CSF), which is essential for cushioning the brain and providing it with nutrients. The choroid plexus is composed of capillaries, ependymal cells, and connective tissues, making it the correct answer as it fits the description provided in the question.
3. Cervical plexus: This is a network of nerves formed by the anterior rami of the first four cervical spinal nerves. It supplies sensation and motor function to parts of the neck and shoulders and is not part of the brain.
4. Brachial plexus: This refers to a network of nerves that originate from the spinal cord in the neck and travel down the arm. It primarily serves the arm, forearm, and hand region and is not associated with brain function.

Based on the information and reasoning above, the Choroid plexus is the correct answer as it is directly associated with the central nervous system within the brain, involving capillaries, ventricles, and ependymal cells. This makes it responsible for producing cerebrospinal fluid, integral to the brain's protective and nutritional functions.