Body Systems

Question 1

Organ system

Answer 1

Lots of organs working together to perform a function such as breathing.

Question 2

Organ

Answer 2

An organ is a group of tissues to perform a function.

Question 3

Hierarchy of an organism

Answer 3

Cell 
Tissue
Organ
Organ system
Organism

Question 4

Antagonistic muscle pairs

Answer 4

Antagonistic muscle pairs are muscles that work opposite each other to make a bone move. When one contracts the other relaxes.

Question 5

Ligament

Answer 5

Ligament connects bone to bone.

Question 6

The skeletal system

Answer 6

The skeletal system is your skeleton.

Question 7

Tendon

Answer 7

Tendons connect muscle to bone.

Question 8

Bone marrow

Answer 8

The bone marrow is the inside bit of the bone. It makes our blood.

Question 9

Cartilage

Answer 9

Cartilage is a smooth surface at the end of the bone which acts as a shock absorber. It reduces friction between bones so the bones don’t where down.

Question 10

Joint

Answer 10

A joint is where two or more bones meet.

Question 10

Trachea

Answer 10

The inhaled and exhaled air goes down the trachea which leads to the bronchi.

Question 11

Synovial fluid

Answer 11

Synovial fluid (like cartilage) reduces friction around the bone. Synovial fluid allows us to move in a more freely way than if we didn’t have it.

Question 12

Bones of the lower leg

Answer 12

Small bone is called the fibula and the big one is the tibia.

Question 13

Inhalation

Answer 13

Inhalation is when we take a breath in.

Question 14

Cell

Answer 14

The cell is the smallest functional unit in an organism.

Question 16

Exhalation

Answer 16

Exhalation is when we breathe out.

Question 17

Bones of the arm

Answer 17

The upper arm is called the humorous. The lower bones are called the ulna (the one closest to the little finger) and the radius (the one closest to the thumb).

Question 18

Your spine

Answer 18

Your spine consists of lots of different vertebra.

Question 19

Diaphragm

Answer 19

The diaphragm separates the lower and upper part of the body. It goes up when you inhale and down when you exhale.

Question 20

Bone

Answer 20

Part of the skeletal system which supports our body. Without our skeleton we wouldn’t be able to move as the muscle will have nothing to attach to.

Question 21

Tissue

Answer 21

A set of similar cells to perform a function.

Question 25

Sternum

Answer 25

The sternum is the breastbone. It is the hard bone at the front and middle of your ribs.

Question 26

Bone of the upper leg

Answer 26

The bone of the upper leg is the femur.