Movement of which muscles can alter the pericardial space in cockroach ?

Options

A. Circular
B. Longitudinal
C. alary
D. Ciliary

Explanation

To answer the question about which muscles can alter the pericardial space in a cockroach, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Pericardial Space**:
- The pericardial space refers to the area surrounding the heart. In the context of a cockroach, it is the space around its heart where blood circulation occurs.

2. **Identify the Muscle Types**:
- The question provides four options: circular muscles, longitudinal muscles, allery muscles, and ciliary muscles. We need to determine which of these muscles are involved in altering the pericardial space.

3. **Focus on the Function of Muscles**:
- Among the options, the allery muscles are specifically known for their role in the cockroach's circulatory system. They assist in the movement of blood by contracting and relaxing, which directly impacts the pericardial space.

4. **Conclude with the Correct Answer**:
- Based on the function of the muscles, the allery muscles (option C) are responsible for altering the pericardial space in the cockroach. They help in pumping blood through the heart's chambers.

### Final Answer:
The movement of **allery muscles** can alter the pericardial space in a cockroach.

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