SKINny legends
How much does the skin cover?
Approx. 2m squared
What substance are hair and nails made of?
Keratin
Should you peel off a scab?
No!
Outer layer of skin mostly comprised of dead cells
Epidermis
Should everyone wear sunscreen?
yes
What is the function of the skin that includes nerve endings?
To sense and feel
What are the medical terms for oil and sweat gland?
Where are these glands most commonly located?
oil - sebaceous - face
sweat - sudoriferous - under arms, forehead, palms, soles of feet
What can reduce DNA damage leading to skin cancer?
Having more melanin
What determines skin colour?
Melanin
Primary function of the skin
Protection
Two ways of body temperature regulation are....
Sweat- for Cooling
Goosebumps and hair -- for warmth
What do blood vessels do?
transport oxygen, nutrients and waste
How could skin cancer occur?
Damage to genetic material from UV light
The muscle fiber that makes goosebumps
Erector Pili
Function of nails
Protect your fingers and toes
What layer of skin are the blood vessels, nerve endings, and hair follicles found in?
Dermis
Another nail for nail base is:
Lunula
What disorder is common in adolescents and happens due to excessive sebum, dead skin cells and bacteria in clogged pores?
Acne vulgaris
The oil that comes out of the sebaceous gland and makes you waterproof
Sebum
Steps of skin healing
1. Cut 2. Blood clot 3. White blood cells/bacteria fighting cells
4. Cells are replaced
The evaporation of sweat enables which function of the integumentary system?
Regulation of body temperature
How do hair and nails grow?
New cells divide and grow and push the old cells out to make the hair and nails.
Name me a disorder or disease related to the skin, hair or nails
Vitiligo-- Losing Melanin in your skin
Alopecia- Losing hair
Ingrown nails or hairs
Etc.
The fatty layer of cells below the dermis
Subcutaneous tissue
Difference between Keratin and Collagen
Collagen: Provides strength and flexibility in the dermis