The structure that are interconnected by corpus callosum are

Options

A. Cerebral hemipheres
B. Ventricles of brain
C. Cerebellar hemisphere
D. Thalamus

Answer

To solve the question regarding the structures interconnected by the corpus callosum, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Corpus Callosum**: The corpus callosum is a thick band of nerve fibers that connects the left and right cerebral hemispheres of the brain. It facilitates communication between the two hemispheres.

2. **Identify the Relevant Brain Structures**: The main structures that are interconnected by the corpus callosum are the two cerebral hemispheres - the left hemisphere and the right hemisphere.

3. **Differentiate Other Options**:
- **Ventricles**: These are hollow spaces in the brain that contain cerebrospinal fluid (CSF) but are not connected by the corpus callosum.
- **Cerebellar Hemispheres**: These are part of the cerebellum, located at the back of the brain, and are not connected by the corpus callosum.
- **Thalamus**: This is a part of the forebrain but does not connect via the corpus callosum.

4. **Conclude the Answer**: Based on the above analysis, the structures interconnected by the corpus callosum are the **cerebral hemispheres**.

### Final Answer:
The structures that are interconnected by the corpus callosum are the **cerebral hemispheres**.

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