Accessories of the Skin
Epidermis & Layers
Dermis & Hypodermis
Function
Skin Injury
100
this region of the nail is where most of the cell growth happens
lunula
100
What kind of tissue makes up the epidermis?
stratified squamous epithelium
100
What is the function of the dermis?
binds epidermis to underlying layer
100
What is the main fucntion of the skin?
protective covering
100
What is inflammation?
swelling of blood vessels. red swollen tissues in response to injury
200
true or false: hair, skin, and nails have a similar growth pattern.
- base region grows new cells
- new cells push old cells outwards
- old cells die and become keratinized
true
200
which layer of the epidermis the the deepest?
(aka the BASE layer)
Stratum Basale
200
What is found in the Hypodermis/Subcutaneous layer?
adipose tissue, blood vessels
200
What are the 3 sections of the skin?
epidermis, dermis, hypodermis
200
extensive collagen fiber production after an injury results in a....
scar
300
at which location is hair formed?
hair bulb
300
What two regions of the body contain the stratum lucidum?
palms of hands and soles of feet
300
Fingerprints are due to the
uneven layer caused by the epidermal ridges and dermal papillae
300
Vasodilation and Vasoconstriction aid in what function?
thermal regulation
300
Explain how a deep wound heals
1. blood clot
2. scab
3. fibroblasts bind the wound together
4. phagocytes remove debris
5. damage tissue is replaces and scab comes off
400
What are sebaceous glands?
glands that secrete sebum to coat hair and skin
400
What are the two kinds of melanin & what are their pigments?
eumelanin- black/brown
pheomelanin- red/yellow
400
List 4 different parts of the Dermis
Hair follicle, hair root, sebaceous gland, sweat gland, hair muscle (arrector pilli), dermal papillae, epidermal ridges, nerve fibers, sensory receptors.
400
Why is it important for us to regulate body temperature?
maintain metabolic reaction rates
400
Use the Rule of 9s to determine how much surface was burned if someone's right arm (all) was burned.
9%
500
Identify the nail matrix
E
500
List the stratum of the epidermis from deep to superficial
Stratam Basale, Stratum Spinosum, Stratum Granulosum, Stratum lucidum (palms and feet only), Stratum Corneum
500
What is the difference between the epidermal ridges and the dermal papillae?
epidermal r. goes downward towards the dermis, and d. papillae go upward towards the epidermis.
500
Give all responses to Hypothermia (4 total)
Goosebumps, shivering, vasoconstriction, de-activation of sweat glands
500
How much water would a 100kg person need if 27% of their body was burned?
(4mL x burn area x body weight)
10,800mL or 10.8 L