Muscles of alimentary canal, heart of cockroach are controlled by 

Options

A. peripheral nervous system
B. central nervous system
C. stomato gastric nervous system
D. sub oesophageal system

Answer

To answer the question regarding which system controls the muscles of the alimentary canal and the heart of a cockroach, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks about the control of the muscles in the alimentary canal and the heart of a cockroach. We need to identify the nervous system responsible for this control.

2. **Identify the Options**: The options provided are:
- A) Peripheral Nervous System (PNS)
- B) Central Nervous System (CNS)
- C) Stomatogastric Nervous System (STNS)
- D) Subesophageal System

3. **Analyze Each Option**:
- **A) Peripheral Nervous System (PNS)**: This system consists of nerves that originate from the nerve ring and ventral nerve cord, which innervate various body parts but does not specifically control the alimentary canal and heart.
- **B) Central Nervous System (CNS)**: The CNS in cockroaches includes the supraesophageal ganglion and ventral nerve cord, but it primarily processes information rather than directly controlling the muscles of the alimentary canal and heart.
- **C) Stomatogastric Nervous System (STNS)**: This system is a neural network that specifically controls the motion of the gut and the muscles of the alimentary canal as well as the heart. This makes it a strong candidate for the answer.
- **D) Subesophageal System**: This system mainly controls the movement of mouthparts, wings, and legs, and does not directly control the alimentary canal or heart.

4. **Conclusion**: Based on the analysis, the stomatogastric nervous system (STNS) is responsible for controlling the muscles of the alimentary canal and the heart of the cockroach. Therefore, the correct answer is **C) Stomatogastric Nervous System**.

### Final Answer:
The muscles of the alimentary canal and heart of the cockroach are controlled by the **Stomatogastric Nervous System (STNS)**.

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