A(n) _______ causes an antibody to be produced.

• antibody

• antigen

• red blood cell

• white blood cell

A(n) ________ is an immunoglobulin that attaches to the antigen.

• antibody

• anitgen

• red blood cell

• platelet

The upper chambers of the heart are:

• atria

• ventricles

• septum

• aortas

Which of the following are functions of the respiratory system? (Choose all that apply)

• take oxygen into the body

• carry oxygen to all body cells

• release carbon dioxide

• fight pathogens

Which blood vessels carry blood away from the heart?

• veins

• venules

• arteries

• capillaries

The bottom chambers of the heart are the:

• atria

• ventricles

• septum

• aorta

Which of the following are functions of the circulatory system? (Choose all that apply)

• transports nutrients throughout the body

• transports oxygen to all body tissue

• transports waste material to the kidneys

• transports hormones throughout the body

Which circulation carries blood to the body and back to the heart?

• coronary circulation

• systemic circulation

• pulmonary circulation

• lymphatic circulation

Which circulation carries blood to the lungs and then back to the heart?

• coronary circulation

• systemic circulation

• pulmonary circulation

• lymphatic circulation

Which is the largest artery of the heart?

• inferior vena cava

• superior vena cava

• aorta

• capillary