Bundle of HIS is a network of

Options

A. Nerve fibres distributed in ventricles
B. Nerve fibres found throughout the heart
C. Muscle fibres distributed throughout the heart walls
D. Muscles fibres found only in ventricle wall

Answer

**Step-by-Step Solution:**

1. **Understand the Question**: The question asks what the Bundle of His is a network of. It is important to know the function and structure of the Bundle of His in the heart.

2. **Evaluate the Options**:
- **Option 1**: "Nerve fiber distributed in ventricles" - This option is incorrect because the Bundle of His is not made up of nerve fibers; it consists of muscle fibers.
- **Option 2**: "Nerve fibers found throughout the heart" - This option is also incorrect as the Bundle of His is not composed of nerve fibers but rather specialized muscle fibers.
- **Option 3**: "Muscle fibers distributed throughout the heart wall" - This option is misleading because while the Bundle of His consists of muscle fibers, it is not distributed throughout the entire heart wall.
- **Option 4**: "Muscle fibers found only in ventricle wall" - This option is correct. The Bundle of His is a collection of muscle fibers that specifically transmits electrical impulses from the AV node to the ventricles.

3. **Conclusion**: Based on the evaluation of the options, the correct answer is **Option 4: Muscle fibers found only in ventricle wall**.

4. **Explanation of Function**: The Bundle of His plays a crucial role in the heart's conduction system by transmitting electrical impulses from the atrioventricular (AV) node to the ventricles, facilitating coordinated heart contractions.