Chapter 6: Exam 2 material Flashcards
1
Q
integumentary
A
skin
2
Q
what is integumentary?
A
large versatile organ
important in the maintenance of homeostasis
subject to rubbing , scratching, attack by microbes, external parasites, chemicals, UV radiation
3
Q
skin
A
organ of integumentary system
4
Q
external layer
A
Keratin
entirely dead
5
Q
Keratinization
A
accumulation of keratin within cellular membranes
6
Q
functions?
A
prevents desiccation reduces threat of injury assists in maintenance of normal body temperature excretes water, salt, and organic waste synthesizes vitamin D storage of nutrients
7
Q
skin is?
A
thickness varies over body
2 layers: epidermis and dermis
separated by a basement membrane
dermal papillae
8
Q
epidermis
A
outer
9
Q
dermis
A
inner
corium
10
Q
epidermis is?
A
keratinized stratified squamous epithelium
forms waterproof shield
lacks blood vessels
although, deeper layers receives nourishment from underlying dermis
