Deep cleft which divides cerebrum longitudinaly into two halves, known as

Answer

To answer the question regarding the deep cleft that divides the cerebrum longitudinally into two halves, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Cerebrum**:
- The cerebrum is the largest part of the brain and is responsible for many functions, including sensory perception, motor control, and cognitive abilities.

2. **Identifying the Structure**:
- Within the cerebrum, there exists a prominent structure that serves as a division between its two halves.

3. **Describing the Cleft**:
- This structure is a deep cleft or groove that runs along the length of the cerebrum, separating it into the left and right hemispheres.

4. **Naming the Cleft**:
- The specific name of this deep cleft is the "longitudinal median fissure."

5. **Conclusion**:
- Therefore, the answer to the question is that the deep cleft which divides the cerebrum longitudinally into two halves is known as the longitudinal median fissure.

### Final Answer:
The deep cleft which divides the cerebrum longitudinally into two halves is known as the **longitudinal median fissure**.

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