Review for test #4 Flashcards Preview

Juliana's Science test December 2017 > Review for test #4 > Flashcards

Flashcards in Review for test #4 Deck (114):
1

What is your skin?

Your skin is an organ

2

What does your skin protect you from?

Your skin protects you from Diseases and and helps keeps body tissues from drying out.

3

Keeping your skin ______ is important.

Healthy

4

Showering or bathing regularly with soap and water helps remove

-dirt,
-germs,
-dead skin cells
-and excess oil from your skin.

5

Use _____ to keep your skin from drying out

mild soap

6

You may want to use ______ if you have dry skin.

lotion

7

Wash your hands often to stop...

the spread of germs that cause illness (especially before you eat)

8

The sun is .....

dangerous

9

The sun gives off....

Ultra violet rays ( UV Rays)

10

These rays cause...

sunburn and tanning

11

sunburn and tanning

signs that the skin has been harmed

12

Years of being in the sun can....

damage your skin, cause wrinkles, loss of stretchiness, and dark spots

13

Over time, skin damage may lead to...

skin cancer

14

If some skin cancers aren't treated early,

they can cause death.

15

It is important to find skin cancer...

in its early stages.

16

Simple ABCD rules for possible signs of skin cancer:

{1) asymmetry - one-half of a mole doesn't match the other half
(2) the edges of a mole are irregular, ragged, uneven, or blurred
(3) the color of the mole isn't
the same all over but may have different shades of brown or black. Sometime~ the spot will
have patches of red, white, or blue.
(4) diameter (is larger than¼ inch or is growing larger).

17

SPF

sun protection factor

18

Protection from the sun:

cover up (protect as much of your skin as possible), use a sunscreen
with an SPF - sun protection factor - of at ieast 30 and reapply every two hours, wear a hat to
protect face, neck, ears, wear sunglasses to protect your eyes, limit your sun exposure when UV
rays are strongest.

19

use a sunscreen with an SPF - sun protection factor - of at least...

30

20

reapply sunscreen....

every two hours

21

Nails grow from...

your skin.

22

To prevent spread of germs

your nails, keep them trimmed. Don't bite your nails!

23

Don't cut your nails too short. If you do so you are exposing living skin. It can lead to...

an infection.

24

Each hair grows from a pitlike area called a...

hair follicle.

25

An _________ in in each follicle makes oil that coats hair and spreads over the surface of your skin. The oil makes your hair and skin soft and smooth and keeps it from drying out.

oil gland

26

Hairs help protect your scalp from...

the sun.

27

Each hair grows from _____to_____ years and then
falls out.

four to seven

28

Brush or comb hair ........

each day

29

Do NOT share combs or brushes! _______ can be
passed from person to person.

Head lice

30

Personal Hygiene: before and during puberty, _____ will cause changes in your body.

hormones

31

oil glands could release more oil, which may cause

acne.

32

Daily bathing and using a deodorant can help control ___________.

body odor.

33

Primary teeth come when you are a baby, They are

replaced by permanent teeth

34

Late teens you ,should have

32 teeth (including four extra molars in the back of your mouth

35

These molars are called...

wisdom teeth (may not appear until you are an adult, or even not at all).

36

Teeth are made up of three layers

1 Enamel
2 Dentin
3 Pulp

37

E,ach tooth has a hard, protective crown made of

enamel

38

Under the crown is a softer material called_____ makes up most of the tooth

Dentin

39

The ____ contains blood vessels that nourish the tooth. It also contains nerves that sense pain and temperature.

Pulp

40

The ______ anchors the tooth in the jaw

root

41

The teeth are surrounded by soft tissue called?

the gums.

42

Brushing and flossing...

remove food and bacterial from teeth and gums.

43

Floss your teeth at least
_____ a day _______ brushing.

once, before

44

Brush your teeth at least ______ a day ______ eating.

twice, after

45

_______ is a mineral that helps protect teeth

Fluoride

46

Use a _____ toothbrush and toothpaste that contains _________

soft, fluoride

47

Your toothbrush and toothpaste should have the ________

American Dental Association (ADA) seal.

48

bacteria in the mouth make a sticky substance called ___________

plague, which coats your
teeth.

49

When the bacteria in plaque break down sugars in the foods you eat, _________ form.

acids

50

These acids make holes, called _______ in your tooth enamel.

cavities,

51

If a cavity isn't treated, the hole spreads
through the dentin to the pulp and then to the _____.

root

52

A dentist treats a cavity by _______ the
damaged portion of the tooth.

removing

53

The dentist then fills the hole with a ________, and the tooth is saved.

hard material

54

If plaque is allowed to remain on the teeth, it
forms a hardened material that can cause ________

gingivitis

55

Gingivitis is a

gum disease

56

Gingivitis is a gum disease. The gums become
___________.

red and swollen.

57

Untreated gingivitis can develop into a more severe form of gum disease, in which the gums weaken and pull back from the teeth. The teeth may........

fall out

58

__________ and _________ can stop gingivitis in its early stages.

Brushing and flossing

59

Orthodontia

The straightening of crooked teeth! Straightening teeth makes them easier to clean and helps prevent cavities and gum diseases.

60

Your eyes are organs that sense ________ and let you see the world around ·you.

light

61

___________is a clear covering that protects the eye and helps focus light entering the eye

Cornea

62

The black-looking ________ in the center of your eye is surrounded by the colored ___________.

pupil, Iris

63

Light enters the eye through the ________.

pupil

64

_________in the iris control the size of the pupil. This determines how much light enters your eye.

muscles.

65

Iris....

adjusts the amount of light entering your eye

66

The lens bends light rays so that images focus on the _________.

retina

67

The retina has light-sensing cells hat change light into ____________.

nerve signals

68

The _________ carries messages from the eye to the brain.

optic nerve

69

A farsighted person can

see things that are far away, but things that are nearby look blurry.

70

A nearsighted person can

see things nearby, but objects far away are blurry.

71

astigmatism

the cornea or lens of the eye is curved unevenly, so everything looks blurry.

72

If you are wearing glasses it's important to have your eyes rechecked __________.

every year

73

We should ALWAYS protect our eyes. We can wear safety goggles to protect our eyes when

1 in the lab,
2 when playing sports,
3when cutting grass,
4sanding wood
etc

74

Our _________ collect sound waves, process them, and send nerve messages to our brain. This enables us to hear sounds

ears

75

The outer ear directs sound waves into the ____________.

ear canal.

76

Sound waves ....

cause the eardrum to vibrate

77

The vibrations are passed to three small bones in the
middle ear. These are the hammer, the anvil and the stirrup.

hese are the
hammer,
the anvil
and the stirrup.

78

Vibrations cause the hammer to move the ____________which moves the stirrup

anvil

79

The moving stirrup causes fluid in the _______ to vibrate. Hairlike cells lining the cochlea move,
changing the vibrations into nerve signals.

cochlea- Hairlike cells lining the cochlea move,
changing the vibrations into nerve signals.

80

The auditory nerve

carries the signals to the brain, where they are interpreted as sound.

81

glands produce a waxy material that traps dirt before it can reach the internal ear parts in the.....

ear canal

82

Tubes lead from your middle ear to your....

throat.

83

Tubes lead from your middle ear to your throat. These tubes drain fluid that collects in
your ears and help keep air pressure the same on

both sides of the eardrums. This protects the
delicate eardrum and keeps your ears working well.

84

Be careful when you wash your ears. Wash only the

outside of the ear.
NEVER put anything into your ear canal (including cotton swabs

85

Ask al _____ if you think your ear canals need to be cleaned.

parent

86

If something gets stuck in your ear, ______ try to get it out yourself.

DON'T

87

The loudness of sounds is measured in
units called _________.

decibels

88

Over time, any continuous sound at or above ______ decibels can damage your
ears!

85

89

LOUD SOUNDS can harm your ears by damaging the tiny hairlike cells in the

cochlea.

90

The body can't replace these cells, so the
damage may be _________.

permanent.

91

The best way to protect your hearing is

to AVOID loud sounds as
much as possible. Keep sounds at a REASONABLE volume.

92

What is a health consumer?

A person who buys and uses health products or services.

93

We live in a world - in a society - where we are _________ influenced by so many people! Actors, singers, (celebrities of all kinds!).

ALWAYS

94

You need to know how to ______ and _________ products and not just buy because you are "TOLD" to do sol

compare and evaluate

95

Just because a famous actor or pop star is using a product ___________ that the product was
meant for you, or that you need it.

DOES NOT MEAN

96

You HAVE TO CHOOSE the best product for yourself and AVOID wasting
money. Learning how to read labels carefully and to analyze advertisements can help you
become a ___________________.

WISE HEAL TH CONSUMER

97

The first thing you have to do is?

gather information.
Information, however, that is reliable,
because some information contain myths (myths are ideas that are false).

98

Advertising can be one source of _____________.

health myths

99

We see ads on TV, in magazines, on the internet, in newspapers.
What is the purpose of these ads?

To make you want to buy a product (whether it's the best
one for your OR NOT!).

100

The information may be true but it may also be _______________.

false or misleading.

101

Good sources of health information

parents (adults), doctors, dentists, pharmacists, school nurses, magazines published by
consumer groups (consumer groups test and rate health products - such as soaps, hand lotions,
- shampoos and sunscreens).

102

(consumer groups t

test and rate health products - such as soaps, hand lotions, shampoos and sunscreens).

103

Newsletters Produced by health organizations also .........

rate health products sometimes.

104

Companies try to get buyers' attention. Why?

To get you to buy.

105

They name the products by
...................?

giving appealing names.

106

Some products may contain chemicals that ..........?

cause allergic reactions

107

You can develop a rash, hives, irritation after using a new product. You should ALWAYS........?

inform an adult.

108

The front of the product usually gives ........?

the product name, a brief explanation of what the product does, and the amount of product in the package

109

The label on the ________has the additional information.

back

110

On the labels is usually the list of ingredients, ingredients are.......?

things that are in the product

111

Why would reading the list of ingredients be important?
Let's analyze advertisements: tricks of advertisers:

• Use a famous person _ _ _
• Tell you that EVERYONE is using the product
• Put it on buses so that you can see it all the time

112

What should you do?

Use common sense! Consider the cost, the features, the
quality, the safety and listen to the advice of others

113

Ask yourself....

"do I really need this product?
Will it do what I want it to do?
Is the price reasonable?"

114

Websites hosted by the ______________
are the most reliable.

government,
by hospitals,
universities