Transcript Integumentary System Notes

Integumentary System
Welcome!
 Get out:

◦ Biking Slips
◦ Notebook
◦ Pen/Pencil

How do you care for your skin?

How do you care for your hair?
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How do you care for your nails?
 You
will find out how to keep
these body parts healthy!
 First
you need to know the
structure of your hair, skin,
and nails and how each part
works!!!
 1.
Integumentary System
◦Covers and protects body
◦Made up of skin, hair, and
nails
 2.
Skin
◦Largest organ in body
◦Has nerve cells that help
detect pain, pressure, heat
cold, and touch
◦Protective layer from germs
◦Maintain a healthful
body temp.
◦Removes waste from
body
 3.
Two Layers of Skin
◦Epidermis – outer layer which
is constantly shed and replaced
◦Dermis – layer below
epidermis that contains hair
follicles, glands, blood vessels
and nerves

Picture of your Skin!!!
 4.
Melanin
◦Protects you from
ultraviolent radiation
◦Pigment that gives skin
its color
 5.
Glands
◦Sweat glands – rids the
body of salt and helps cool
the body by releasing sweat
through pores
◦Sebaceous gland – oil
producing gland that protects
the skin
Sebum – oil produced by
sebaceous gland
 6.
Nails
◦Composed of dead cells
and keratin, a tough
protein
 7.
Hair
◦ Dead cells filled with keratin
◦ Protects skin and helps maintain
body temp
Goosebumps
Prevents loss of heat through
head
◦ Each hair grows in a hair follicle
◦8. Hair follicle – a
depression on the surface
of the skin that contains
nutrients needed for hair
to grow
 9.
Problems of the Integ.
System
 A.
Sunburn –
◦Caused by UV rays from the
sun
◦People with fewer amounts of
melanin are more likely to be
sunburned
◦Can be prevented by wearing
sunblock (at least SPF 30!!!)
 B.
Skin Cancer
◦Also called melanoma
◦Can be obtained from the
sun
◦Studies have shown tanning
booths may cause skin
cancer

ABCD’s of Skin Cancer
A
– Asymmetry
◦ If your mole is NOT the same on
both sides, it could be cancerous
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B – Border Irregularity
◦ If the outside borders are shaped oddly,
the mole may be cancerous.
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C – Color
◦ If your mole is black with a blueish tint,
it may be cancerous
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D – Diameter
◦ Check for moles that are wider than ¼ of an
inch, or larger than the size of a pea.
 C.
Acne
◦ Lesions on the skin filled with
excess oil and dirt which encloses
the skin’s pores.
◦ To prevent pimples:
 Wash face daily with facial cleanser
that contains Benzoyl.
 D.
Athlete’s Foot
◦ Fungal infection of the skin
between the toes
◦ Caused by sweating and heat
◦ Highly contagious
◦ Wear sandals or other foot
coverings when in locker room or
shower!

E. Ringworm
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◦
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Common fungal infection of skin
Ring-shaped
Scaly, blistery patches form
Itchy
Contagious! Be careful of locker rooms…
 11.
Keeping the Integ. System
Healthy
 A. Nails
◦ Clip regularly, clean dirt out under
nails
◦ Wear clean socks, avoid contact
with locker room floors, showers to
prevent athletes foot
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B. Hair
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Wash every day
Cut regularly
Avoid sharing hats or headgear
Brush hair
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C. Skin
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Use sunscreen
Don’t use tanning beds!
Use ACNE medication
Wash face and skin everyday when showering
 12.
Deodorant
◦ Used to prevent excess sweating
and body odor smells
◦ Applied to armpits
◦ Look for a deodorant and
antiperspirant – prevents
sweating..
How I will Keep My Integumentary
System Healthy…
 Hair –
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Skin –
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Skin on Face -
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Nails -
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1.
2.
3.
4.
5.
6.
7.
8.
Epidermis
Dermis
Blood Vessel
Hair
Pore
Nerve
Sweat Gland
Oil (Sebaceous) Gland