integumentary

Question 1

layers of epidermis

Answer 1

stratum corneum -filled with keratin filaments stratum lucidum -several layers of flattened dead cells stratum granulosum -cytoplasm of flattened cells consists of keratohyalin granules. stratum spinosum stratum basale-has cuboidal cells

Question 2

cell types foynd in dermis

Answer 2

melanocytes,langerhans and merkel cells

Question 3

vellus hair

Answer 3

short,fine and slightly pigmented type of hair found on skin.

Question 4

nail plate

Answer 4

keratinized structyre on the surface

Question 5

nail root

Answer 5

part of nail plate covered by epidermis.

Question 6

lunula

Answer 6

incompletely keratinized part of the exposed nail plate.

Question 7

nail bed

Answer 7

underlying structure continuos with stratum germinativum and spinosum

Question 8

nail matrix

Answer 8

part of nail bed which underlies the nail root and produces cell s which develop into nail plate.

Question 9

eponychium(cuticle)

Answer 9

extends over nail root

Question 10

hyponichium

Answer 10

skin under the free edges of the nail plate.