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In Biology / Senior High School | 2025-07-24

What are the layers of the skin and what are their functions?

Asked by weakerzz2719

Answer (1)

The skin has three main layers: the epidermis, dermis, and hypodermis (or subcutaneous layer). Each layer has unique structures and functions that together protect and regulate the body.Epidermis:The outermost layer of the skin.Made of keratinized stratified squamous epithelium.Main cells include keratinocytes (which produce keratin for protection) and melanocytes (which produce melanin to protect against UV rays).Functions:Acts as a barrier against microbes, chemicals, and water loss.Provides skin tone and protection from sun damage.Constantly sheds dead skin cells and renews itself.Dermis:Middle layer beneath the epidermis.Contains connective tissue, blood vessels, nerve endings, sweat glands, sebaceous (oil) glands, and hair follicles.Functions:Supports the epidermis with nutrients and oxygen.Provides sensation (touch, pain, temperature) through nerve receptors.Helps regulate body temperature through sweat glands and blood vessels.Produces oil to keep skin moisturized.Hypodermis (Subcutaneous layer):Deepest layer composed of fat and connective tissue.Functions:Provides insulation and helps conserve body heat.Acts as a cushion to protect internal organs.Serves as an energy reserve.Together, these layers not only protect the body from external threats but also help regulate internal balance (homeostasis), store energy, and allow sensory interaction with the environment.

Answered by dapperdazzle | 2025-07-25

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