Question

What does corpus callosum connects in human brain?

• A. Two optic lobes
• B. Bone and muscle
• C. Two cerebral hemisphere
• D. Two lobes of pituitary gland

Hint:

The corpus callosum is the largest white matter structure in the brain, facilitating communication and coordination between the left and right cerebral hemispheres. Damage to the corpus callosum can lead to disconnection syndromes, where the two hemispheres are unable to communicate effectively.

Answer 1

The Correct Option is C

To solve this problem, let's explore the role of the corpus callosum in the human brain and its function in connecting different parts of the brain.

1. What is the Corpus Callosum?

The corpus callosum is a thick band of nerve fibers located deep in the brain. It connects the left and right hemispheres of the brain, allowing communication between them. The corpus callosum is essential for coordinating activities and enabling the two hemispheres to share information. Without it, the brain's left and right sides would not be able to work together efficiently, leading to various cognitive and motor difficulties.

2. Explanation of Each Option:

- Option 1: "Two optic lobes" – This is incorrect. The optic lobes are involved in visual processing, but they are not connected by the corpus callosum. The corpus callosum specifically connects the two cerebral hemispheres, not the optic lobes.

- Option 2: "Bone and muscle" – This is incorrect. The corpus callosum is a structure in the brain that connects brain regions, not bones and muscles. Bone and muscle interactions are regulated by the nervous system, but not by the corpus callosum.

- Option 3: "Two cerebral hemispheres" – This is the correct answer. The corpus callosum connects the left and right cerebral hemispheres, enabling communication and coordination between the two. This connection allows for the integration of sensory information, motor control, and cognitive functions across both sides of the brain.

- Option 4: "Two lobes of the pituitary gland" – This is incorrect. The pituitary gland has two lobes, the anterior and posterior lobes, but the corpus callosum does not connect these. The pituitary gland is part of the endocrine system and is not directly connected by the corpus callosum.

3. Why This Matters:

The proper functioning of the corpus callosum is crucial for efficient brain function. It allows the two hemispheres of the brain to work together in tasks that require coordination, such as speech, movement, and problem-solving. Damage to the corpus callosum can lead to a range of neurological disorders, including difficulty in processing sensory information, motor coordination issues, and cognitive dysfunction.

4. Final Answer:

The corpus callosum connects the two cerebral hemispheres.