Skin Anatomy: Stratum Basale and Melanin

<p>In light-skinned people, melanin is digested by lysosomes in the upper layers of the epidermis, while in dark-skinned people it remains throughout the epidermis. (B)</p> Signup and view all the answers

<p>To act as receptors for touch sensations. (B)</p> Signup and view all the answers

<p>Exposure to ultraviolet radiation. (A)</p> Signup and view all the answers

<p>They secrete signaling molecules to modulate immune responses. (B)</p> Signup and view all the answers

<p>The number of melanocytes is generally the same regardless of skin tone. (B)</p> Signup and view all the answers

The deepest layer of the epidermis, responsible for cell division and regeneration.

Also known as the stratum germinativum, this layer is composed of a single row of stem cells, primarily keratinocytes.

These are the most common cells in the stratum basale, responsible for producing keratin, a protein that forms the main component of skin.

Specialised cells located in the stratum basale, they are responsible for touch sensation.

These cells are responsible for producing melanin, the pigment that gives skin its color.

A dark pigment produced by melanocytes, responsible for protecting the skin from UV radiation.

The process of melanin production, stimulated by ultraviolet (UV) radiation, that results in a tanned appearance.

Melanocytes also secrete signaling molecules that help regulate the immune response within the skin.