The Body System

Bones make up your skeleton, and ____________ move your skeleton.

• muscles

• the eyes

• the backbones

Besides supporting you, your bones ____________the inside of your body.

• relax

• protect

• heat

Your bones are conected at ___________.

• voluntary muscles

• the joints

• the tendons

When cells die at a wound or from disease, ___________carry them away.

• red blood cells

• platelets

• plasma

• white blood cells

What system is shown in the picture?

• Nervous System

• Circulatory System

• Muscular System

• Skeletal System

Sticky threads made by ___________ help close up holes made by cuts or wounds.

• plasma

• DNA

• platelets

• bones

The body makes blood cells inside the _____________.

• marrow

• muscle

• tendons

• brain

The three main parts of the circulatory system are the blood, the heart, and _____________.

• platelets

• tendons

• blood vessels

The exchange of oxygen and carbon dioxide takes place in blood vessels called___________________.

• capillaries

• veins

• arteries

To move a part pf the body, one muscle tightens and its partner _________________.

• cushions

• relaxes

• contracts