Epidermis

Question 0

epidermis

Answer 0

surface of skin that consists of dead cells packed with keratin

Question 1

functions of integumentary system

Answer 1

resistance to trauma & infection, water retention, vitamin D synthesis, sensation, thermoregulation, nonverbal communication

Question 2

keratinocytes

Answer 2

epidermis; packed with tough protein keratin

Question 3

melanocytes

Answer 3

pigment producing cells in basal layer of epidermis

Question 4

tactile cells

Answer 4

sense of touch

Question 5

stem cells

Answer 5

divide and replace other epidermal cells that die

Question 6

dendritic cells

Answer 6

detect foreign matter and microbes invading the skin

Question 7

epidermis layers

Answer 7

stratum basale, stratum spinosum, stratum lucidum, stratum corneum, stratum granulosum

Question 8

stratum basale

Answer 8

deep, single layer of stem cells, keratinocytes, melanocytes, and tactile cells. produces keratinocytes

Question 9

stratum spinosum

Answer 9

thickest layer of epidermis, consisting of many layers of keratinocytes and dendritic cells

Question 10

stratum granulosum

Answer 10

water barrier. 3-5 layers of flat keratinocytes with coarse, dark-staining granules

Question 11

stratum lucidum

Answer 11

clear (lucid) layer of dead cells with no internal structure. only in thick skin of palms and soles

Question 12

stratum corneum

Answer 12

up to 30 layers of dead, keratinocytes that gives skin it’s toughness

Question 13

exfoliate

Answer 13

flake off (skin)

Question 14

dander

Answer 14

dead keratinocytes that flakes off skin