All topics from Health Science - Grade 8 & 9

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What is health?

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This contains most of the body systems, and extra things like Nutrition.

346 Terms

1

What is health?

A complete state of physical, mental, and emotional well-being

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2

What are 5 examples of healthy habits?

Drinking at least 8 glasses of water per day

Get at least 8 hours of sleep a day

Have a balanced diet

Exercise Regularly

Visit the doctor twice a year

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3

What are 3 examples of good hygiene?

Brush teeth after each meal

Bathe at least twice a day

Use deodorants

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4

Where is the Cranial Cavity?

In the head

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5

What organ is located in the Cranial Cavity?

Brain

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6

Where is the thoracic cavity located?

In the chest

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7

What organs are located in the abdominal cavity?

Heart and Lungs

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8

Where is the abdominal cavity located?

Below the Diaphragm

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9

List 4 organs located in the abdominal cavity.

Small intestine

Large intestine

Kidneys

Pancreas

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10

Put this in the right order: Organ - Cell - Tissue - System

Cell - Tissues - Organs - System

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11

What is the smallest unit in the body?

Cells

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12

What is the function of the cell membrane?

Controls what enters and leaves the body

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13

What is the function of the nucleus?

Controls the activities of the cell

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14

What is the function of the cytoplasm?

Contains the organelles of the cell

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15

What is the function of the mitochondria?

Makes energy (site of respiration)

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16

How much bones does the skeletal system (adult) have?

206

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17

How much carpals are in one hand?

8

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18

How many metacarpals are on one hand?

5

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19

How many phalanges are on one hand?

14

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20

How many pairs of ribs are there?

12

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21

What is the skeletal system responsible for?

Support, Protection, and Movement

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22

What is the shin bone?

Tibia

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23

What bone is the radius attached to?

Radius

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24

What all materials is the skeletal system made of?

Bones, bone marrow, joints, ligaments, tendons, cartilage, synovial fluid

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25

What is the longest and strongest bone?

Femur

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26

What is the smallest bone?

Stirrup

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27

What are the last 2 pairs of ribs called and why?

Floating ribs because they are not attached to the front of the sternum

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28

How much bones is a baby born with?

300

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29

What are bones mainly made of?

Calcium

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30

What is a joint?

The place where 2 or more bones meet

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31

What are the types of joints?

Immovable, Hinge, Ball and Socket, Pivot, Gliding

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32

What does the immovable joint do?

Allow no movement

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33

Where are immovable joints located?

Skull and Hips

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34

Where are hinge joints located?

Elbow, Knee, Finger

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35

Where do ball and socket joints move?

Any direction

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36

Where are ball and socket joints located?

Shoulder (top of humerus) and Hip (top of femur)

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37

What does the pivot joint do?

Allows tilting

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38

Where is a pivot joint located?

Neck

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39

What is a gliding joint?

Joint made of several bones that glide against each other

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40

Where are 3 gliding joints located?

Wrist, Ankle, Vertebral Column

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41

What is cartilage?

Soft smooth bone

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42

Where is cartilage found?

At the ends of bones and at joints

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43

What does cartilage do?

Reduces friction to allow bones to move easily at joints

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44

What is synovial fluid?

Oily liquid found at most joints

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45

What does synovial fluid do?

Lubricates joints to reduce friction

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46

What do ligaments do?

Connect bone to bone

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47

What do tendons do?

Connect muscle to bone

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48

What is a fracture?

A broken bone

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49

What is a sprain?

Damaged ligaments

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50

What is a dislocation?

When a bone comes out of a socket at a joint

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51

How do muscles move?

Contracting or Relaxing

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52

What are 3 types of muscle tissue?

Skeletal, Smooth, Cardiac

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53

What is another name for skeletal muscles and why?

Antagonistic because when one is contracting the other is relaxing

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54

What are the skeletal muscles in the arm?

Biceps and Triceps

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55

What are examples of smooth muscles?

Intestines, stomach, diaphragm

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56

Where are cardiac muscles found?

In the heart

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57

What are all of the types of teeth in an adult human?

Incisors, Canines, Premolars, Molars

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58

What are incisors used for?

Biting and Cutting

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59

How many incisors are there in total?

8

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60

What are canines used for?

Tearing and ripping flesh

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61

How many canines are there in total?

4

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62

What are premolars used for?

Crushing and grinding food up

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63

How many premolars are there in total?

8

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64

What are molars used for?

Crushing and grinding food up

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65

How many molars are there in total?

12

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66

When do the last molars develop?

18-25

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67

How much teeth are there in an adult human in total?

32

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68

What are the first set of teeth to develop called?

Temporary Teeth

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69

How many teeth are in the first set of teeth to develop?

20

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70

What are the second/last set of teeth to develop called?

Permanent Teeth

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71

How many teeth are in the second set of teeth to develop?

32

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72

What kind of teeth are found in the second set to develop, but not the first set?

Molars

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73

What is the crown (of a tooth)?

The upper (visible) part of the tooth

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74

What is the root (of the tooth)?

The non-visible section of the tooth in the gum

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75

What is the enamel?

The tough outer layer of the tooth

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76

What does the enamel do?

Protect the tooth

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77

What is the dentin?

The layer under the enamel

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78

What is the pulp cavity?

The layer under the dentin in the middle of the tooth

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79

What is in the pulp cavity (do not answer living tissue)?

Nerve cells and Blood capillaries

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80

What is the cementum?

Tough fibers that hold the tooth in place in the gum

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81

What is the largest type of tooth?

Molars

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82

__________ is the hardest substance in the body.

Enamel

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83

Is the enamel made of living tissue?

No

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84

Is the dentin made of living tissue?

Yes

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85

Is the pulp cavity made of living tissue?

Yes

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86

What is the softest part of the tooth?

Pulp cavity

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87

What are 3 ways to enforce dental hygiene?

Eat less sugary foods

Use a fluoride toothpaste

Floss regularly

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88

What is a cavity?

A hole in the tooth

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89

How is a cavity caused?

Bacteria feeding on sugars and converting it to acid, which destroys the enamel

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90

What is plaque?

A sticky slimy substance that sticks onto the surface of teeth

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91

What the thing that plaque contain?

Bacteria

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92

Which three minerals are important for healthy teeth?

Phosphorus, Calcium, Fluorine

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93

Which mineral strengthens tooth enamel?

Fluorine

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94

What are nutrients?

Compounds in food essential to life

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95

What are the 5 food groups that contain each nutrient?

Grains, Vegetables and legumes, Fruits, Dairy Products, Proteins

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96

What nutrient does grains provide?

Carbohydrates

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97

What nutrients do fruits, vegetables, and legumes provide?

Vitamins, Minerals, Fiber

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98

What nutrient does meats, nuts, and beans provide?

Proteins

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99

What nutrients does dairy and dairy products provide?

Calcium

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100

What is a balanced diet?

Meals which contain foods from all the food groups in the correct amount

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