Chapter 11 Flashcards
1
Q
Homeostasis
A
Maintaining a stable internal environment
2
Q
The integumentary system
A
The skin
3
Q
Number one line of defense against pathogens
A
Skin
4
Q
Layers of skin
A
Epidermis
Dermis
Subcutaneous layer (hypodermis)
5
Q
Flat and irregular
A
Squamous epithial cells (top layer of epidermis )
6
Q
Not as flat, still alive
A
Non reproducing living cells
7
Q
Bottom layer of epidermis
A
Germination cells
8
Q
Psoriasis
A
Cells reproduce too rapidly
9
Q
Makes skin cells harder
A
Keratin (protein)
10
Q
Skin pigment
A
Melanin
11
Q
Thickest, most complex layer of skin
A
Dermis
12
Q
Dermis
A
Elastin and collagen
Lines of tension
13
Q
Subcutaneous layer
A
Fatty layer of loose connective tissue
Insulation, shock absorber
14
Q
Dead keratinized skin cells
A
Hair shaft
15
Q
Hair grows the same as
A
Skin
