Lab 2 - Skin Structures

Question 1

Epidermis

Answer 1

-no blood vessels (avascular)
-doesn’t receive nutrients

Question 2

Keratinocyte

Answer 2

produces keratin (protein in hair & nails)

Question 3

Corneal layer

Answer 3

outer layer that is made of thin squamous epithelial cells

Question 4

Basal layer

Answer 4

-deepest layer
-columnar keratinocytes

Question 5

Dermis

Answer 5

thick layer deep to epidermis

Question 6

Dermal Papilla

Answer 6

small rounded projections at the top of the dermis

Question 7

Hypodermis (subcutaneous layer)

Answer 7

-located deep to dermis
-loose connective tissue and adipose tissue

Question 8

Adipose Tissue

Answer 8

fat tissue
-provides conditioning

Question 9

Sweat Gland

Answer 9

coided str

Question 10

Sebaceous Gland

Answer 10

secretes sebum
-usually attached to hair follicles

Question 11

Hair Root

Answer 11

the area of the hair under the surface and within the hair follicles

Question 12

Hair Shaft

Answer 12

part of hair you can see externally
-dead (like surface of skin)

Question 13

Hair Follicle

Answer 13

encapsulates hair root
-where the hair grows from (alive)

Question 14

Arrector Pili Muscle

Answer 14

muscle associated with the hair
-causes hair to stand up (goosebumps)

Question 15

Sebum

Answer 15

waxy/oily substance