Stratum basale

Definition

The stratum basale is the deepest layer of the epidermis, consisting of a single row of keratinocytes that are constantly dividing and pushing older cells towards the surface. This layer includes melanocytes that produce melanin, giving skin its color.

Related terms

Keratinocytes:

These are the primary type of cells found in the epidermis, responsible for producing keratin, a protein that gives skin its strength and flexibility.

Melanocytes:

Cells located within the stratum basale that produce melanin, the pigment responsible for skin color and protection against UV radiation.

Epidermis:

The outermost layer of skin made up of several sub-layers including the stratum basale, providing barrier protection against environmental hazards