In brain crura cerebri is a structure made of :

Options

A. Six bands of nerve fibres
B. Eight bands of nerve fibres
C. Two large bands of nerve fibres
D. Four bands of nerve fibres

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
- The question asks about the composition of a structure in the brain known as "Crura Cerebri."

2. **Identifying the Structure:**
- Crura Cerebri is located in the midbrain, which is a part of the brainstem.

3. **Describing the Midbrain:**
- The midbrain has a contracted region, and the anterior part of this region is specifically what we refer to as Crura Cerebri.

4. **Composition of Crura Cerebri:**
- The Crura Cerebri is made up of two longitudinal bands. These bands are not just any fibers; they are myelinated nerve fibers.

5. **Conclusion:**
- Therefore, the correct answer to the question is that Crura Cerebri is made up of **two large bands of myelinated nerve fibers**.

**Final Answer:**
- Crura Cerebri is made up of **two large bands of myelinated nerve fibers**.

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