epidermis

Question 1

stratum corneum (squamous cells)

Answer 1

the surface layer that is periodocally cast off or shed is stratum (layer) corneum (outermost)

Question 2

Stratum basale (basal meaning basic)

Answer 2

basal cells are located under the squamous cells, at the foundation of the epidermis. this layer is called stratum basale (stratum germinativum), and is the deepest of the five layers. stratum basale lays on top of the dermis and has access to a rich supply of blood.

Question 3

stratum lucidum

Answer 3

the surface of the palms of the hands and soles of the feet. this is a clear layer that forms as a protective layer in response to heavy use.

Question 4

stratum granulosum

Answer 4

the granular layer of cells. Keratinocytes migrating from the underlying stratum spinosum become known as granular cells in this layer. this layer contains two types of granules, keratohyalin granules (secrete lipids to hold the cells together).

Question 5

stratum spinosum

Answer 5

composed of prickle cells that are interwoven for protection

Question 6

melanocytes

Answer 6

also spotted at the base of the epidermis and make melanin. this gives the skin its pigment. the term pigment is derived from the latin ‘pigmentum’ meaning ‘paint.’