What are the three primary layers of the skin?

The three primary layers of the skin are the epidermis (outermost), dermis (middle), and hypodermis/subcutis (deepest layer).

Which layer of the epidermis undergoes mitosis to produce new skin cells?

The stratum germinativum (stratum basale) is the deepest epidermal layer where cell division (mitosis) occurs to produce new skin cells.

What is the function of melanin in the skin?

Melanin is a pigment produced by melanocytes that gives skin its color and helps protect the skin from the harmful effects of ultraviolet (UV) radiation.

What protein gives the skin its strength and flexibility, and is found in the dermis?

Collagen and elastin are proteins found in the dermis; collagen provides strength and structure, while elastin provides flexibility and elasticity.

What is the technical term for the outermost layer of the epidermis that consists of dead, keratinized cells?

The stratum corneum is the outermost epidermal layer composed of dead, keratinized (cornified) cells that act as a protective barrier.

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