Cerebrum is divisible into left and right cerebral hemispheres by a

Options

A. Sulcus
B. Gyrus
C. Deep longitudinal cleft
D. Corpus callosum

Answer

To solve the question "Cerebrum is divisible into left and right cerebral hemispheres by a", we need to analyze the options provided and identify the correct term that describes the division of the cerebrum.

### Step-by-Step Solution:

1. **Understanding the Cerebrum**:
- The cerebrum is the largest part of the brain and is responsible for various higher brain functions, including thought, action, and sensory processing.

2. **Identifying the Division**:
- The question asks how the cerebrum is divided into left and right hemispheres.

3. **Evaluating the Options**:
- **Sulcus**: This refers to the grooves on the surface of the brain. While sulci are important for increasing the surface area of the cerebral cortex, they do not divide the cerebrum into hemispheres.
- **Gyrus**: This refers to the bumps or ridges on the brain's surface. Like sulci, they contribute to the brain's surface area but do not serve as a division between hemispheres.
- **Deep Longitudinal Cleft**: This term refers to the deep fissure that separates the left and right hemispheres of the cerebrum. This is the correct term for the division.
- **Corpus Callosum**: This is a structure that connects the left and right hemispheres, allowing communication between them, but it does not divide them.

4. **Conclusion**:
- The correct answer is **Deep Longitudinal Cleft**, as it is the structure that divides the cerebrum into left and right hemispheres.

### Final Answer:
Cerebrum is divisible into left and right cerebral hemispheres by a **Deep Longitudinal Cleft**.

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