Epidermal Levels

Question 0

Most superficial layer
20 to 30 layers of dead cells
Glycolipids in extracellular space

Answer 0

Stratum Corneum

Question 0

A thin layer named for the abundant granules it contains

Lamellar granules contain a waterproofing glycolipid that is secreted into the extracellular space

Answer 0

Stratum Granulosum

Question 1

Several cell layers
Thick web-like bundles of intermediate filaments made of a pre-keratin protein
It appears spiky
Dendritic cells may appear in this layer

Answer 1

Stratum Spinosum

Question 3

A single row of cells immediately superficial to the dermis
It’s cells are constantly undergoing mitosis
Contains melanocytes and tactile (Merkel) cells

Answer 3

Stratum Basale

Question 4

(Only found in thick skin)

A very thin, translucent band of flattened, dead keratinocytes with indistinct boundaries.

Answer 4

Stratum Lucidum