Circulatory System UPDATED ACTUAL Questions and CORRECT Answers

Circulatory System UPDATED ACTUAL Questions and
CORRECT Answers

Circulatory System The group of organs and tissues that transport essential materials to body cells
and remove their waste products.


Artery A type of blood vessel that carries blood away from the heart to all parts of the
body.


Vein A type of blood vessel that carries blood back to the heart from all parts of the
body.


Capillary A type of blood vessel that provides body cells with blood and connects arteries
(arterioles) with veins (venules). The exchange of oxygen and carbon dioxide
takes place there.


Pulmonary Circulation Circulation that carries blood from the heart, through the lungs, and back to the
heart.


Systemic Circulation Circulation that sends oxygen-rich blood to all the body tissues except the lungs.


Plasma The watery portion of the blood.


Blood Pressure The force of blood pushing against the walls of the blood vessels.


Aorta The largest artery in the body; it conducts freshly oxygenated blood from the
heart to the tissues.


Superior and Inferior Vena Cava The two largest veins in the body.


Artierioles Small arteries.


Venules Small veins.


Right and Left Atrium The two upper chambers of the heart.


Right and Left Ventricles The two lower chambers of the heart.


Septum A muscular wall that separates the right and left sides of the heart.


Valves Tissue that can open and close. They separate the chambers of the heart.


Red Blood Cells Cells that deliver oxygen molecules to every cell of the body.


White Blood Cells Cells that fight and destroy germs and illnesses in the body.


Platelets Blood cells that help our blood to clot.