Vocabulary
second layer of skin
Dermis
How thicc is the epidermis (how many cells)?
10-30 cells
How thicc is the dermis, compared to the epidermis?
15-40 times thiccer than the epidermis
helps the outer layer of skin stay cool
sweat
This type of burn has no pain because of nerve cell damage.
3rd degree burn
absorbs light energy
Melanin
protein that waterproofs cells
Keratin
What type of tissue prevents skin from tearing?
Connective
Caused by contraction of muscle cells in the dermis
Goosebumps
form a scab
bloodclots
superficial layer of skin
epidermis
2 things that go through the epidermis
hair shaft and sweat pore (or sweat)
layer directly below the dermis
subcutaneous tissue
increases absorption of calcium
Vitamin D
Helps get rid of bacteria and fights infection
white blood cells
lubricates skin and hair
sebaceous gland
a major component of dust
dead skin cells
what does the subcutaneous layer do?
stores fat and retains heat
give an example of an environmental change that affects the skin
answers vary
2 warning signs of skin cancer
obvious change in wart or mole, irregular shape, varied in color, or larger than the diameter of a pencil
contains keratin and develops in the dermis
hair follicle
The process that renews epidermis cells
mitosis
whats that gross spaghetti-looking structure in the dermis? what does it do?
Sweat gland, produces and stores sweat (water).
4 things the skin does
temperature regulation, vitamin D production, protection, and perception
the deadliest form of skin cancer
Melanoma