Epidermis

Question 1

Stratum Corneum

Answer 1

Layer of flat, dead cells filled with protein keratin
Protects against heat, pathogenic microorganisms, chemicals, and light

Question 2

Stratum Lucidum

Answer 2

Clear, flat cells with a pre-keratin substance called eleidin
Found primarily in the palms of the hands and soles of the feet

Question 3

Stratum Granulosum

Answer 3

Contains flattened cells containing keratohyalin which will later become keratin

Question 4

Stratum Spinosum

Answer 4

Where keratin is produced through many of these cells

Question 5

Stratum Basale or Stratum Germinativum

Answer 5

Single layer of cuboidal and columnar cells that undergo mitosis and become cells of the superficial layers