Human Body

Question 0

What are the 3 main parts of a cell

Answer 0

Cell membrane

Nucleus (chromosomes)

Cytoplasm (other organelles)

Question 1

What is the basic unit of structure and function

Answer 1

A cell

Question 2

What is different cells working together

Answer 2

Tissue

Question 3

Types of tissue

Answer 3

Muscle,nerve,connective,and epithelial

Question 4

Muscle tissue

Answer 4

Has the ability to contract or shorten

Question 5

Connective tissue

Answer 5

Provides support and unites body parts

Question 6

Nerve tissue

Answer 6

Carries messages back and forth between the brain and spinal cord to every part of the body

Question 7

Epithelial tissue

Answer 7

Protective surface inside and outside of the body

Question 8

What are organs

Answer 8

A structure made up of different tissues working to perform a job

Question 9

What are organ systems

Answer 9

A group of organs that work together to perform a major function

Question 10

What is homeostasis

Answer 10

The process by witch an organisms internal environment is kept stable

Question 11

What is stress

Answer 11

The reaction of your body and mind to a threatening event

Question 12

What is the fight or flight response

Answer 12

Reactions of the body that prepare you to either fight or escape

Question 13

What does long term stress do

Answer 13

Disturb homeostasis

Can lead to other problems

Many ways to help cope with stress

Question 14

How many bones are there in our bodies

Answer 14

206

Question 15

What are the bones in are bodies held together by

Answer 15

Ligaments

Question 16

What are the 5 functions of the skeletal system

Answer 16

1. It provides shape and support
2. along with muscles allows for movement
3. protects internal organs
4. stores important materials like calcium phosphorous
5. produces blood cells

Question 17

What is ossification

Answer 17

Process by witch the cartilage disappears and is replaced by bone

Question 18

What is a joint

Answer 18

Any place where 2 bones meet

Question 19

What is a ligament

Answer 19

Connective tissue that connects bone to bone

Question 20

What are the 2 main types of joints

Answer 20

Immovable and movable

Question 21

What are examples of immovable joints

Answer 21

The joints of the skull

Question 22

What are the 4 types of moveable joints

Answer 22

Hinge, ball and socket,gliding,and pivot joints

Question 23

How does the ball and socket joint move

Answer 23

Move freely in a circle ex.hip,shoulder

Question 24

How does the hung joint move

Answer 24

Movement forward and backward in 1 direction ex:knee elbow

Question 25

How does the pivot joint move

Answer 25

Allows one bone to rotate around another ex:elbow skull and neck

Question 26

How does the gliding joint move

Answer 26

Allows one bone to slide over another ex:wrist ankle

Question 27

What are 3 important materials for healthy bones

Answer 27

Calcium phosphorous and iron

Question 28

What is osteoporosis

Answer 28

A condition in which the bone become weak and break easily

Question 29

All of your jones are attached to ___

Answer 29

Muscles which are made of long thing fibers

Question 30

What do muscle fibers give muscle tissue the ability to?

Answer 30

Contract

Question 31

Typed of muscles?

Answer 31

Skeletal,smooth,cardiac

Question 32

What are tendons

Answer 32

Connective tissue that connects muscles to bones

Question 33

Describe skeletal muscles

Answer 33

They are attached to bones they appear striped sometimes called striated and they are voluntary they react very quickly and also tire very easily

Question 34

Describe smooth muscles

Answer 34

They contract without you telling them they appear smooth sometimes called involuntary and they control digestion and breathing they are found in the walls of blood vessels and they react and tire slowly

Question 35

Describe cardiac muscles

Answer 35

Found only in heart they appear striped with many nuclei they are involuntary and never tire

Question 36

An example of a muscle pair in the body is

Answer 36

Biceps witch are in the front on the upper arm and triceps witch are in the back on the lower arm

Question 37

What happens to your biceps and triceps when you bend and flex your elbow

Answer 37

Biceps contract they are flexors and triceps relax

Question 38

Muscles work only by? Therefor they must work in ?

Answer 38

Pulling,pairs

Question 39

In order to contract muscle fibers need?

Answer 39

Energy,oxygen, signal that trains the brain

Question 40

Functions of the skin?

Answer 40

``` Prevents water loss Protects injury Eliminates waste Gathers information Produces vitamin D ```

Question 41

What are the 2 main layers of skin

Answer 41

Epidermis and dermis

Question 42

To take care of your skin you should

Answer 42

1. eat properly 2. drink plenty of water 3. limit exposure to the sun 4. keep skin clean and dry

Question 43

Skin problems?

Answer 43

Cancer Acne Athletes foot

Question 44

Pore

Answer 44

Tiny opening of the skins surface

Question 45

Epidermis

Answer 45

Dead outer layer of skin

Question 46

Dermis

Answer 46

Living lower layer of skin

Question 47

Spongy bone

Answer 47

Strong lightweight bone with many holes

Question 48

Compact bone

Answer 48

Hard part of bone made up of living cells protein fibers and minerals

Question 49

Marrow

Answer 49

He soft tissue that fills the internal spaces in bone where new blood cells are made

Question 50

Involuntary muscle

Answer 50

Muscle tissue that is not under conscious control happens automatically

Question 51

Connective tissues that is more flexible than bone and gives support to some parts of the body

Answer 51

Cartilage