The lining of intestinal wall from outside to inside is made up of

Options

A. circular muscles`rarr longitudinal muscles`rarr`mucosa`rarr`submucosa
B. longitudinal muscles`rarr`circular muscles `rarr` submucosa `rarr` mucosa
C. mucosa `rarr` submucosa `rarr` circular muscles `rarr` longitudinal muslces
D. submucosa `rarr` longitudinal muscles `rarr` circular muscles `rarr` mucosa.

Explanation

To answer the question about the layers of the intestinal wall lining from outside to inside, we can break down the solution into clear steps:

### Step-by-Step Solution:

1. **Identify the Layers of the Intestinal Wall**: The intestinal wall is composed of several layers, each serving a specific function. The main layers from the outermost to the innermost are:
- Serosa (or adventitia)
- Muscularis (which includes two sub-layers: longitudinal and circular muscles)
- Submucosa
- Mucosa

2. **Understanding the Structure**:
- **Serosa**: This is the outermost layer that provides protection and structural support.
- **Muscularis**: This layer is responsible for the movement of the intestines. It consists of:
- **Longitudinal Muscles**: These run along the length of the intestine and help in shortening the intestine during contractions.
- **Circular Muscles**: These encircle the intestine and help in constricting it, aiding in the mixing and movement of food.
- **Submucosa**: This layer contains blood vessels, nerves, and connective tissue, providing support and nourishment to the mucosa.
- **Mucosa**: The innermost layer that lines the lumen of the intestine, containing glands that secrete digestive enzymes and mucus.

3. **Correct Order from Outside to Inside**: Based on the structure of the intestinal wall, the correct order of the layers from outside to inside is:
- **Serosa**
- **Muscularis (Longitudinal Muscles, Circular Muscles)**
- **Submucosa**
- **Mucosa**

4. **Conclusion**: Therefore, the correct answer to the question is that the lining of the intestinal wall from outside to inside is made up of the following layers: Serosa, Muscularis (Longitudinal and Circular Muscles), Submucosa, and Mucosa.