The muscular contraction in the alimentry canal is known as

Options

A. Systole
B. Diastole
C. Peristalsis
D. Metachronal

Answer

To solve the question "The muscular contraction in the alimentary canal is known as," we need to analyze the provided options and identify the correct term associated with muscular contractions in the digestive system.

### Step-by-Step Solution:

1. **Understand the Options**: We have four options to consider:
- A) Systole
- B) Diastole
- C) Peristalsis
- D) Metacronal

2. **Define Each Term**:
- **Systole**: This term refers to the contraction of the heart muscles. It is not related to the alimentary canal.
- **Diastole**: This term refers to the relaxation phase of the cardiac muscles. Like systole, it does not pertain to the digestive system.
- **Peristalsis**: This is the wave-like muscular contraction that occurs in the alimentary canal. It is responsible for moving food through the digestive tract.
- **Metacronal**: This term refers to the coordinated movement of cilia and flagella, which is unrelated to the muscular contractions in the alimentary canal.

3. **Identify the Correct Answer**:
- Since both systole and diastole are related to heart function and metacronal pertains to cilia and flagella, the only term that accurately describes the muscular contractions in the alimentary canal is **peristalsis**.

4. **Conclusion**: Therefore, the correct answer to the question is **C) Peristalsis**.