Mucosa membrane of alimentary canal consists of

Options

A. muscular mucosa
B. lamina propria
C. epithelium
D. all of these

Answer

To answer the question regarding the composition of the mucous membrane of the alimentary canal, we can break down the solution into the following steps:

### Step-by-Step Solution:

1. **Identify the Mucosa**: The mucosa is the innermost layer of the alimentary canal. It plays a crucial role in digestion and absorption.

2. **Layers of the Mucosa**: The mucosa itself is composed of three distinct layers:
- **Muscularis Mucosa**: This is the outermost layer of the mucosa, made up of smooth muscle. It helps in the movement of the mucosa and aids in the digestive process.
- **Lamina Propria**: This is the middle layer, consisting of loose connective tissue. It contains blood vessels, lymphatics, and immune cells, providing support and nourishment to the mucosa.
- **Epithelium Layer**: This is the innermost layer of the mucosa. It is made up of epithelial cells that are involved in secretion and absorption.

3. **Conclusion**: Therefore, the mucous membrane of the alimentary canal consists of the muscularis mucosa, lamina propria, and epithelium layer.

4. **Final Answer**: The correct answer to the question is that the mucous membrane of the alimentary canal consists of these three layers.