The canal passing through the midbrain is called

Options

A. Medulla oblongata
B. Cerebral aqueduct
C. Eustachian tube
D. Aqueous chamber

Answer

### Step-by-Step Solution:

1. **Identify the Question**: The question asks for the canal that passes through the midbrain.

2. **Understand the Structure of the Midbrain**: The midbrain is a part of the brain located above the hindbrain and below the forebrain. It contains various structures and canals.

3. **Identify the Relevant Canals**: In the midbrain, there are several important structures, including the cerebral aqueduct, which connects the third and fourth ventricles.

4. **Define the Cerebral Aqueduct**: The cerebral aqueduct is a narrow channel that allows the flow of cerebrospinal fluid (CSF) between the third ventricle and the fourth ventricle.

5. **Eliminate Incorrect Options**:
- **Medulla Oblongata**: This is not a canal; it is a part of the brain located below the midbrain.
- **Eustachian Tube**: This is a tube that connects the middle ear to the nasopharynx and is not related to the midbrain.
- **Aqueous Chamber**: This term refers to a part of the eye, not a canal in the brain.

6. **Conclusion**: The only correct answer to the question is the **cerebral aqueduct**, as it is the canal that passes through the midbrain.

### Final Answer:
The canal passing through the midbrain is called the **cerebral aqueduct**.

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