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Chapter 14- Personal Care and Healthy Behaviors
Transcript of Chapter 14- Personal Care and Healthy Behaviors
Healthy Skin,Hair, and Nails
Your skin is the largest organ in your body, and produces per
Your skin is the largest organ of your body, and produces perspiration in order to help keep your body cool.
Structures and Functions of the Skin!!!!
epidermis-the outer, thinner layer of the skin that is composed
of living and dead cells.
dermis-the thicker layer of the skin beneath the epidermis that is made up of connective tissue and contains blood vessels and nerves.
melanin-pigment that gives the skin ,hair, and iris of the eyes their color.
sweat glands-structures within the dermis that secrete perspiration through ducts to pores on the skin's surface.
Always wear sunscreen on exposed areas of skin to protect your skin from UV Rays:)
Many problems of the skin are NOT life threatening such as Acne and Warts,
but they can affect a person's self-image.
Boils-form when hair follicles become
infected with bacteria that are normally
found on the surface of the skin.
Moles-spots that contain extra melanin.
Vitiligo-skin condition in which
patches of skin have lost all pigment.
melanoma-most serious form
of skin cancer, which can be deadly.
Hair & Nails
You have 100,00 to 200,000 hairs on your head.
Regular shampooing is a must to keep your hair healthy.
dandruff-a condition that can occur if the scalp
becomes too dry and dead skin cells shed, white flakes.
Nails function to protect and
support tissues of the fingersand toes.
trimming toenails straight across and just
slightly above skin level helps reduce risk of infection
and in grown nails.
Care of Teeth & Mouth
Permanent teeth have different shapes,
but they all have the same structure.
periodontium-area immediately around the teeth.
A tooth itself is made up of 3 main
parts: the crown, the neck, and the root.
One main threat to the health of your
teeth is the bacteria that inhabits your mouth
and lives on the sugar found in foods you eat.
plaque- a sticky, colorless film that acts on sugar
to form acids that destroy tooth enamel and irritates gums.
halitosis- or bad breath, caused by eating certain foods,
poor hygiene, smoking, bacteria on tongue, or gum disease.
tartar- hard, crustlike
substance formed when plaque hardens.
Plaque and tartar cause the
gums to become irritated and swollen.
malocclusion- bad bite, extra teeth, crowded
teeth, and misalignment of the upper and lower jaws.
Malocclusion can lead to decay and disease,
and can affect a person's speech and ability to chew.
Your eyes sit in bony sockets,
called orbits, in the front of your skull.
Each eye has a group of structures
that make and allow drainage of tears.
On average humans blink about 6,250,000 times a year!
Parts of the Eye
The eye is made up of two main parts,
the optic nerve and three layers of the eyeball wall.
The outermost layer is made up of the sclera & cornea.
sclera- tough, white part of the eye, composed
of tough fibrous tissue that protects the inner layers
of the eye and supports and shapes the eyeball.
cornea-transparent tissue that blends
and focuses light before it enters the lens.
choroid- thin structure that lines the inside of the sclera.
retina-light sensitive membrane on
which images are cast by the cornea.
Myopia, or nearsightedness, results in a
person not being able to see distant objects clearly.
Hyperopia, or farsightedness, distant objects can be seen clearly; near objects appear blurry.
*Diseases of the Eye*
A sty is an inflamed swelling of the sebaceous gland near the eyelash.
Conjunctivitis, better known as pinkeye, is an inflammation of the
conjunctiva, a thin membrane that covers the sclera lining of eyelids.
Ears & Hearing Protection
*The ear has three main sections: outer ear,middle ear, and inner ear.
-the outer ear begins with the visible part of
the ear, the auricle. Helps channel sound waves
into the external auditory canal.
passageway about one inch long that leads to the remaining portion.
The eardrum, also called tympanic membrane is a thin membrane that acts as a barrier b/w outer and middle ear.
To keep your ears healthy you must clean them regularly,
exposure to loud noise over time leads to temporary,
and sometimes permanent hearing loss or deafness.