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Questions and Answers
What is the main function of keratin produced by keratinocytes in the epidermis?
What is the main function of keratin produced by keratinocytes in the epidermis?
- Facilitate diffusion of nutrients
- Provide hardness and make skin waterproof (correct)
- Produce melanin for skin pigmentation
- Initiate immune response to protect the skin
Which layer of the skin contains no blood vessels and is nourished by diffusion of nutrients from the underlying dermis?
Which layer of the skin contains no blood vessels and is nourished by diffusion of nutrients from the underlying dermis?
- Dermis
- Epidermis (correct)
- Hypodermis
- Stratum corneum
What is the main function of melanin produced by melanocytes in the epidermis?
What is the main function of melanin produced by melanocytes in the epidermis?
- Provide protection against UV radiation (correct)
- Initiate immune response to protect the skin
- Produce keratin for skin hardness
- Facilitate diffusion of nutrients
Which type of cell in the epidermis is responsible for initiating an immune response to protect the skin?
Which type of cell in the epidermis is responsible for initiating an immune response to protect the skin?
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What is the approximate percentage of the total body weight that the skin constitutes in humans?
What is the approximate percentage of the total body weight that the skin constitutes in humans?
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