The epidermis is highly thickened in:

Options

A. Cheek
B. Palm
C. Thigh
D. Lip

Answer

**Step-by-Step Solution:**

1. **Understanding the Layers of Skin**: The skin is composed of multiple layers. The outermost layer is the epidermis, which is made up of several sub-layers including the stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum basale. Beneath the epidermis is the dermis, which contains glands and hair follicles, and below that is the hypodermis.

2. **Analyzing the Options**: The question asks where the epidermis is highly thickened. The options provided are:
- Cheek
- Palm
- Thigh
- Lips

3. **Evaluating Each Option**:
- **Cheek**: The skin on the cheeks is made up of the same seven layers but is not particularly thickened compared to other areas.
- **Palm**: The skin on the palms is known to be hairless (glabrous) and is highly sensitive to touch. It has a thicker epidermis due to the presence of specialized connective tissue (fascia), which provides additional protection and thickness.
- **Thigh**: The skin on the thigh also consists of the same seven layers, but it is not as thick as that on the palms.
- **Lips**: The skin on the lips is very sensitive and consists of stratified squamous epithelium, which is different from the thicker epidermis found in other areas.

4. **Conclusion**: After evaluating all options, the epidermis is highly thickened in the **palm**. Therefore, the correct answer is **palm**.

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