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Human Body Owner's Manual: The Skin (Period 08)

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LV LC

on 17 September 2014

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Transcript of Human Body Owner's Manual: The Skin (Period 08)

&
Acne
Layers of the Skin
Epidermis
: The outermost layer of the skin. Contains special cells called melanin, responsible for the pigmentation of the skin.

Subcutaneous Tissue
: Layer of fat and connective tissue. Houses major blood vessels and nerves, responsible for regulation of skin and body temperature
.
SPF
The Skin
UV Rays
UVA
= 95% of UV Radiation.

Tanning Ray
, however after prolonged periods, skin begins to darken to prevent DNA damage.

(can cause
skin cancer
)
Liane Cabrera

Jonathan Corral

Justin De Leon

Jenna Dickensheets

Richard Pedzik
Interesting Facts
UVB=
Causes reddening and sunburns. Mostly damages epidermal layer. UVB rays are most present between 10a-4p from Apr-Oct. Can damage year-round. So put that sunscreen on!
Skin Diseases
*Tanning Booths
: Beware! Emits x12 the amount of
UVA rays
than the sun. First exposure will increase risk of melanoma by 75%
Acne occurs when oil and dead skin cells clog the pores. There are three types of acne: whiteheads, blackheads, and pimples. All three types can appear on the face, neck, shoulders, back, and chest.
Skin Cancer
Melanoma
: the most dangerous type of skin cancer. affects pigment cells called

melanin
.
Basal Cell Skin Cancer
: Occurs when exposed to the sun for too long. Effects Basal Cells.
Squamous Cell Carcinoma
: Other type of skin cancer, occurs when too little exposure to sun.
Hyperpigmentation is a common harmless skin condition that makes the area darker in patches. This is caused by excess melanin deposits in the skin; they are most commonly seen as age or liver spots and are caused by sun damage.

Hypopigmentation is the lack of melanin in the skin, therefore the opposite of Hyperpigmentation.
SPF: Sun Protection Factor. Ability to prevent UVB rays from damaging the skin.

SPF# x10 = amount of time for skin to burn in direct sunlight.

Apply sunscreen every 2 hours, regardless of SPF number.
Dermis
: Contains three types of tissue: collagen, elastic, and reticular fibers. Two types of layers;

papillary

(upper and thinnest collagen fibers),

and

reticular

(lower and thickest collagen fibers).
Eczema
Hyperpigmentation
Hypopigmentation
Eczema is a term for a group of medical conditions that cause the skin to become irritated or inflamed. The most common type of Eczema is known as Dermatitis. Eczema, no matter where it occurs, makes the skin itch and can result in a rash.
1. Skin is the largest organ in the body

2. Your skin counts for about 15% of your total body weight

3. Eyelids have the thinnest skin, having only a length of 0.02 mm
4. Every 28 days, your skin renews itself.
Period 08
Any Questions?
The Human Organ Manual
Tattoos
Dangers - If tattoo artist reuses needles it can cause
infectious disease
(AIDS,HIV,etc.).
Removal- Removal is done by using laser technology and can cause

scarring.
Allergic Reactions
- Allergies when getting
a tattoo is rare but if it does occur can be troublesome.
Burns
1st Degree -
Only happens to outside layer of skin, red and may swell. Place under cool water
Ex. sunburn, small fire burn
2nd Degree -
3rd Degree -
Burns through the epidermis and reaches the dermis, skin becomes very red and splotchy. Must also run over cool water. Do not put pressure on the burn.
Skin appears charred black or dry and white. Do not put cold water on skin.
Go to the hospital.
Electrical Burns
May look minor, but are very serious. The can cause internal damage to places such as your heart, muscles, and brain.
Go to your physician in order to check if your heart is at a regular pace.
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