Epitheleomuscular cells of epidermis of Hydra form

Options

A. Circular muscles
B. Oblique muscles
C. Longitudinal muscles
D. None of the above.

Answer

To solve the question regarding what the epithelial muscular cells of the epidermis of Hydra form, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Epithelial Muscular Cells**:
- Epithelial muscular cells are unique cells that have both epithelial and muscular characteristics. In Hydra, these cells are found in the epidermis.

2. **Structure of Epithelial Muscular Cells**:
- These cells are cylindrical in shape. Their inner ends extend into processes that contain myonins or unstriated muscle fibers.

3. **Orientation of Muscle Fibers**:
- The muscle fibers within these cells run parallel to the long axis of the Hydra's body and its tentacles.

4. **Function of Muscle Fibers**:
- Since the muscle fibers are aligned along the length of the body, they contribute to the contraction and movement of Hydra in a longitudinal direction.

5. **Identifying the Type of Muscles Formed**:
- Given that the muscle fibers are oriented along the length of the body, we can conclude that these epithelial muscular cells form longitudinal muscles.

6. **Final Answer**:
- Therefore, the correct answer to the question is that the epithelial muscular cells of the epidermis of Hydra form **longitudinal muscles**.