Mucosa forms many small finger like villi in the -

Options

A. Stomach
B. Colon
C. Caecum
D. Small intestine

Answer

To answer the question "Mucosa forms many small finger-like villi in the -", we need to identify where in the digestive system the mucosa has these structures. Here's a step-by-step solution:

### Step 1: Understand the Structure of the Digestive System
The digestive system is composed of several layers, including the mucosa, submucosa, muscularis, and serosa. The mucosa is the innermost layer that lines the gastrointestinal tract.

**Hint:** Remember that the digestive system has multiple layers, and the mucosa is the innermost one.

### Step 2: Identify the Function of the Mucosa
The mucosa is responsible for various functions, including secretion and absorption. It has specialized structures that increase its surface area for these functions.

**Hint:** Consider what the mucosa does in terms of absorption and secretion.

### Step 3: Recognize the Infoldings of the Mucosa
In different parts of the digestive system, the mucosa can form different structures. In the stomach, it forms folds called rugae, while in the intestines, it forms small finger-like projections known as villi.

**Hint:** Think about the specific structures formed by the mucosa in the stomach versus the intestines.

### Step 4: Identify the Location of Villi
Villi are specifically found in the small intestine. They increase the surface area for absorption of nutrients from digested food.

**Hint:** Recall where absorption of nutrients primarily occurs in the digestive system.

### Final Answer
Mucosa forms many small finger-like villi in the **small intestine**.