Appendages

Question 1

Appendages

Answer 1

Everything that’s not in the primary skin

eg: hair, glands, nails, mucousae

Question 2

Hair follicles

Answer 2

“pilosebaceous unit”

Epidermal component + dermal papilla

Question 3

Hair follicles - growth phases

Answer 3

Anagen - growing
Catagen - involuting
Telogen - resting (hair dead and falls out itself)

Question 4

Sebaceous glands location

Answer 4

Attached to hair follicles

Found in face and chest

Question 5

Sebaceous glands function

Answer 5

Secretes oily matter (sebum) which lubricates hair shaft
Controls moisture loss
Waterproofs and lubricates skin
Protection from fungal infection

Question 6

Apocrine sweat glands

Answer 6

Develop as part of pilosebaceous unit
Androgen dependent
Produce oily fluid which becomes an odour after bacterial decomposition

Question 7

Apocrine sweat glands location

Answer 7

Genital areas and axillae

Question 8

Eccrine sweat glands location

Answer 8

Palms of hands, soles, axillae

Question 9

Eccrine sweat glands function

Answer 9

Secrete water to the skin surface in response to sympathetic NS detecting an increase in body temp
Leads to cooling by evaporation
moistens palms, softens soles of feet