Layers of the Epidermis

Question 1

stratum basale

Answer 1

deepest layer, single row or columnar keratinocytes with scattered keratin intermediate filaments

Question 2

stratum spinasum

Answer 2

8-10 rows of many sided keratinocytes with bundles or keratin intermediate

Question 3

stratum granulosum

Answer 3

3-5 rows of flattened keratinocytes, which organelles beginning to degenerate

Question 4

stratum lucidum

Answer 4

present only in skin of palms, palmar surface of digits, soles and plantar surfaces of toes, consists of 4-6 rows of clear and flat keratinocytes with large amounts of keratin

Question 5

stratum corneum

Answer 5

few to 50 or more rows of dead, flat keratinocytes that mostly contain keratin