Body Systems

What is breathing controlled by?

• brain

• heart

• lungs

• rib cage

Which is not a solid part of your blood?

• plasma

• red blood cells

• white blood cells

• platelets

What are nerve cells called?

• nephrons

• neurons

Where does the transformation of oxygen and carbon dioxide take place?

• bronchi

• alveoli

• bronchioles

• trachea

What is the job of red blood cells?

• carry carbon dioxide

• carry oxygen

• fight infection

• keep us warm

Which is not true about the cerebrum?

• largest part of the brain

• coordinates all the brain's messages

• makes us who we are

• gives us the ability to feel, move, and talk

Which vessel brings high oxygen blood to the heart?

• pulmonary artery

• aorta

• pulmonary vein

• vena cava

The heart is a muscle that needs oxygen.

• True

• False

What are valves?

• Allow blood to flow backward

• between the left atrium and right ventricle

• between the left atrium and left ventricle, between right atrium and right ventricle

• not responsible for keeping blood to flow in the right direction

Blood flows out the aorta from the left ventricle to be delivered to the rest of the body?

• True

• False