Skeleton

When a muscle contracts it becomes longer.

• true

• false

When one muscle in a pair contracts, so does the other

• true

• false

Muscles attach to bones help the bones to move.

• true

• false

Each bone that makes up the backbone is called a

• vertebrate.

• invertebrate

• vertebra.

• scale.

A system that includes all the bones in the body is a

• joint.

• skeleton.

• torso.

• skull

are the place where two bones meet or connect.

• Joints

• Lungs

• Muscles

What bones protect your heart and lungs?

• breastbone

• rib cage

• collarbone

• wrist bones

What is medicine?

• sign of illness

• helps us to cure illness

• place where two bones meet

• helps us to move

Two types of muscles

• biceps and triceps

• biceps and ulna

• triceps and femur

• radius and thigh

What is symptoms

• helps us to cure illness

• sign of illness

• helps to to move

• is a type of muscles