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74 Cards in this Set

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a body part made of different types of tissues- groups of cells that work together to perform certain functions
organ
the largest organ in your body
skin
thin, outer layer of skin where dead cells are constantly being shed
epidermis
thick, inner layer of the skin (nerve-endings, sweat and oil glands)
dermis
layer of tissue that binds the skin to your body (fat)
subcutaneous layer
hair in ears and nose that serve as proection
cilia
Sweating is good for you. True or false
True. Good for you to release heat.
4 main function of the skin
1. protection
2. sensation
3. temperature regulation
4. waste removal
BMT
Basil Metabolism temperature
97-99 degrees F
oily substance produced by the oil glands in the dermis and reaches the surface of hte epidermis through tiny openings
sebum
tiny openings in the skin
pores
brown pigment in the epidermis that gives your skin and hair its color
melanin
True or False?
Melanin does not protect against UV rays.
False.
nerve ending that receives information about the environment and sends it to the brain
receptor
condition characterized by red, swollen, itchy patches on the skin (cured with medicated shampoo)
Dermatitis
condition characterized by patches of pink to purple-colored skin covered with grayish-white scales (no cure)
Psoriasis
What can you use to cure athlete's foot?
baby powder and corn starch
an abnormal, uncontrolled growth of cells that invade and destroy healthy tissue
cancer
a lotion that blocks out some of the sun's UVB rays and reduces skin damage
sunscreen
SPF
Sun Protection factor
ingredient in sunscreen, number shows how much protection teh sunscreen provides against UVB rays
SPF
How often should you reapply sunscreen when you are outdoors?
every 2 hours
thick cream taht completely blocks both types of UV rays (not SPF rated)
sunblock
3 nonliving parts of your body
hair, nails, teeth
sharp front teeth that bite and cut food
incisors
How many inscisors do you have?
8
pointed teeth that tear food into smaller pieces
canines (eyeteeth)
flat teeth with double points that tear and crush food
premolars
large, flat teeth with several rounded points that grind food into bits
molars
How many premolars do you have?
8
How many canines do you have?
4
How many molars do you have?
12
part of tooth that you can see above the gumline
crown
the part of the tooth below the gum line that fits into the jawbone
root
2 main parts of teeth
root, crown
hard, nonliving, dense, white material containing calcium, hardest material in our body, helps protect the tooth from decay organisms
enamel
softer material in the enamel, forms the body of the tooth and extends down into the root
dentin
inside the dentin, soft inner tissue that contains blood vessels and nerves
pulp
How many permanent teeth do adults have?
32
How many teeth should a toddler (child between 2 and 3) have?
20
material made of saliva, foodparticles, and bacteria
plaque
a hole in the enamel
cavity
hardened plaque that can cause gum disease
calculus
How often should you get a new toothbrush?
every 3 months and after colds
white patches in mouth, may lead to cancer
Leukoplakia
bad breath
simple chronic halatosis
TMJ
temperomadibular joint
tasteless, odorless chemical that helps prevent tooth decay
flouride
How should you take care of your teeth daily?
brush twice a day and flosh once a day and see the dentist at least twice a year
the clear covering at the front of the eye
cornea
the round opening in the center of your eye (black)
pupil
controls the size of your pupil (whatever color your eye is)
iris
bends the light rays so they come together at a point inside your eye
lens
light-sensitive tissue that lines the inner eye
retina
very sensetive to light but can only distinguish black from white
rods
can distinguish colors but are less sensitive to light
cones
electrical signals that are transmitted along nerves
nerve impulses
sees closer objects clearly but objects at a distance look blurred
nearsightedness
sees distant objects clearly but objects that are closer look blurred
farsightedness
a condition that causes blurred vision at all distances
astigmatism
a hereditary disorder in which the person cannot distinguish between certain colors (cannot be corrected)
colorblindness
a serious eye disorder that is caused by increased pressure of the fluids inside the eye (corrected by surgery)
Glaucoma
condition in which the lens becomes cloudy and blocks light entering the eye (corrected by surgery)
cataract
2 most common eye diseases
stye (bubble on inside or under the eye) and pinkeye (highly contagious, wash hands frequently and do not share anythign with other people, treatable)
2 types of corrective lenses
glasses and contacts
**BONUS QUESTION
How much did advertisers pay per commercial during the SuperBowl?
$2.3 million per commercial
protects dirt and other objects from getting into the inner ear
ear hair
connects the middle ear with the back of the throat and nose (keeps the air pressure equal)
eustachian tube
between teh middle and inner ear, covered by a thin membrane
oval window
3 bones of the ear
hammer, anvil, stirrup
spiral tube containing receptors that sense vibration
cochlea
curved tubes in your inner ear that help provide your sense of balance
semicircular canals
specialist who diagnoses and treats hearing problems
audiologist
when sound becomes damaging
about 85 or 90 decibels