wk 2: integumentary system Flashcards
1
Q
what are the main structures of the integumentary system?
A
- skin
- hair
- nails
- cutaneous glands
2
Q
what are the layers of the skin?
A
- epidermis (most superficial layer)
- dermis (“true skin”)
- hypodermis (subcutaneous layer)
3
Q
name the layers of the epidermis from deep to superficial.
A
- stratum basale
- stratum spinosum
- stratum granulosum
- stratum lucidum
- stratum corneum
4
Q
fx: stratum basale
A
has cells that constantly divide to replace dead ones
5
Q
fx: stratum corneum
A
dead keratinocytes; hydrophobic
6
Q
the dermis contains…
A
7
Q
the cutaneous glands contain…
A
the sweat and sebaceous glands
8
Q
sebaceous glands release…
A
sebum
9
Q
name four types of sweat glands.
A
- ceruminous
- merocrine
- apocrine
- mammary
10
Q
cerumen glands produce…
A
earwax
11
Q
merocrine glands produce and secerte…
A
12
Q
apocrine glands produce and secerte…
A
13
Q
mammary glands produce and secerte…
A
14
Q
what are the functions of the integumentary system?
A
- protect against UV rays and pathogens
- vitamin D production
- temperature regulation
- nonverbal communication (e.g. blushing)
- sensation (feeling)
water retention
15
Q
why is pain an important sensation?
A
pain prevents further damage
