Cardiovascular & Lymphatic Systems

Superior / Inferior Vena Cava

Large veins that return oxygen-poor blood from the body to the right atrium.

Right Atrium

Upper right chamber that receives deoxygenated blood from the vena cava.

Tricuspid Valve

Valve between right atrium and right ventricle that prevents backflow.

Right Ventricle

Lower right chamber that pumps blood to the lungs.

Pulmonic Valve

Valve that controls blood flow from right ventricle to pulmonary artery.

Pulmonary Artery

Carries deoxygenated blood from heart to lungs.

Pulmonary Veins

Carry oxygenated blood from lungs to left atrium.

Left Atrium

Upper left chamber that receives oxygenated blood from lungs.

Mitral (Bicuspid) Valve

Valve between left atrium and left ventricle.

Left Ventricle

Lower left chamber that pumps oxygenated blood to the body.

Aortic Valve

Valve controlling blood leaving left ventricle into aorta.

Ascending Aorta

Main artery carrying oxygen-rich blood from heart to body.

White Blood Cells

Fight bacteria and viruses.

Red Blood Cells

Carry oxygen using hemoglobin.

Platelets

Cell fragments that help blood clot.

Plasma

Watery part of blood that carries nutrients, oxygen, and waste.

Hemoglobin

Iron-containing protein that transports oxygen.

Antigen

Sugar-based receptor on red blood cells.

Antibody

Protein that neutralizes foreign invaders.

Rh Factor

Protein that is either present (+) or absent (-) in blood.

Blood Type A

Has A antigen and B antibodies.

Blood Type B

Has B antigen and A antibodies.

Blood Type AB

Has both antigens and no antibodies.

Blood Type O

Has no antigens and both antibodies.

Coronary Circulation

Supplies the heart muscle with blood.

Pulmonary Circulation

Moves blood between heart and lungs.

Systemic Circulation

Moves blood between heart and body.

Arteries

Carry oxygen-rich blood away from heart.

Veins

Carry oxygen-poor blood back to heart.

Capillaries

Microscopic vessels where gas and nutrient exchange occurs.

Gas Exchange

Oxygen enters blood and carbon dioxide leaves blood in lungs.

Diffusion

Movement of oxygen into cells and waste out of cells.

Lymphatic System

Filters and returns lymph fluid to bloodstream and fights disease.

Lymph

Fluid containing water, glucose, and white blood cells.

Lymph Nodes

Filter lymph and trap bacteria.

Lymph Vessels

Transport lymph through body using muscle movement.

Universal Donor

Blood type O.

Universal Recipient

Blood type AB.