Circulatory System

What is the main function of the circulatory system?

• to control and coordinate all the functions of the body

• to circulate nutrients, gases and waste around the body

• to circulate nutrients in the digestive system

• to move gases into and out of the lungs

Blood that leaves the LEFT side of the heart is pumped to:

• the body

• the lungs

• the right side of the heart

• None of these

What happens to blood at the lungs?

• It becomes oxygenated (gets oxygen) and gets rid of carbon dioxide

• the blood gets both oxygen and carbon dioxide

• The blood becomes deoxygenated (loses oxygen) and gets carbon dioxide

• both oxygen and carbon dioxide leave the blood

When blood flows from the LEFT side of the heart to the rest of the body, this is called

• pulmonary circulation

• digestive circulation

• systemic circulation

• cardiac circulation

The flow of blood from the heart to the lungs is called

• cardiac circulation

• respiratory circulation

• systemic circulation

• pulmonary circulation

Blood flows from the ______ side(s) to the lungs

• Right

• Left

• both

• Blood doesn't flow to the lungs

Blood circulates around the body to

• Remove waste from cells

• To bring nutrients and gases to cells

• to keep the cells hydrated

• to bring waste to the cells

Blood travels to the lungs to

• To help the lungs work

• get carbon dioxide and get rid of oxygen

• get oxygen and get rid of carbon dioxide

• get nitrogen oxide and get rid of oxygen

Why is it important for blood to remove waste from cells?

• If waste builds up, cells can't perform their function.

• If waste builds up, your blood gets dirty.

• If waste builds up, you'll be too heavy to move.

• If waste builds up, you can't find the remote.

Blood vessels in your skin can widen (dilate) or contract (constrict) to help your body

• grow faster

• breathe better

• digest food

• regulate body temperature