Answer :
Answer:
D. Subcutaneous
Explanation:
Please see the brief explanation for each choice below:
- A. Dermis: The dermis is the middle layer of the skin, located between the epidermis (outer layer) and the subcutaneous tissue. It contains connective tissue, blood vessels, nerves, hair follicles, and sweat glands. While it plays a role in supporting and nourishing the epidermis and housing various structures, it does not primarily serve as an insulating layer.
- B. Subdermis:The term "subdermis" is not commonly used in anatomy. The correct term is "subcutaneous tissue" or "hypodermis," which refers to the layer of tissue beneath the dermis. The subcutaneous tissue contains fat cells and connective tissue, which are important for insulation, cushioning, and energy storage.
- C. Epidermis: The epidermis is the outermost layer of the skin. It is primarily composed of epithelial cells and serves as a protective barrier against environmental factors. It does not contain significant amounts of fat cells and is not involved in insulation.
- D. Subcutaneous: The subcutaneous tissue (or hypodermis) is the deepest layer of the skin, situated below the dermis. It contains a significant amount of adipose (fat) tissue, which helps insulate the body by retaining heat and protecting against cold temperatures. This layer also acts as a cushion to protect underlying muscles and organs and serves as an energy reserve.
