Epithelial cells get nutrient material from

Options

A. Neighbouring cells
B. Blood vessels
C. Lymph vessels
D. Underlying tissue .

Answer

### Step-by-Step Solution:

1. **Understanding Epithelial Cells**: Epithelial cells are a type of tissue that forms the outer layer of organs and structures throughout the body. They serve various functions, including protection, absorption, and secretion.

2. **Characteristics of Epithelial Cells**:
- They line all surfaces and cavities in the body.
- They cover both internal and external organs.
- They are highly permeable, allowing substances to pass through.
- They play a role in osmoregulation, maintaining the balance of fluids.
- Importantly, epithelial cells are avascular, meaning they do not have their own blood supply.

3. **Nutrient Acquisition**: Since epithelial cells are avascular, they cannot receive nutrients directly from blood vessels. Instead, they obtain nutrients through diffusion.

4. **Source of Nutrients**: The nutrients diffuse from the underlying tissues, which are vascularized and provide the necessary substances for the epithelial cells.

5. **Conclusion**: Based on the characteristics and the method of nutrient acquisition, the correct answer to the question "Epithelial cells get nutrient material from" is **underlying tissue**.

### Final Answer:
Epithelial cells get nutrient material from **underlying tissue**.

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