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13 terms

Circulatory System

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Heart
Muscular organ that pumps blood throughout the body
Heartbeat
Muscle contraction that pushes blood through the blood vessels. You will hear the valves opening and closing
Blood Vessels
Arteries=> Capillaries => Veins
Arteries
Muscular blood vessels that carry blood with oxygen away from the heart.
Pulmonary Artery
Carries blood from the heart to the lungs, the only artery that doesn't carry oxygenated blood
Aorta
Largest human artery that carries blood from the heart to the body
Capillaries
Smallest blood vessels where substances are exchanged by the process of DIFFUSION.
Veins
Carry blood with CARBON DIOXIDE to the heart from the body
Pulmonary Vein
Carries blood from the lungs to the heart, the only vein that carries oxygenated blood
Superior Vena Cava
Largest human vein
White Blood Cells
Are also made in blood marrow and are they body's disease fighters that kill disease-causing organisms by releasing antibodies
Platelets
Cell fragments that cause blood to clot to stop bleeding
Antigens
Protein makers (A & B) on red blood cells that determine a person's blood type and stimulate the production of antibodies. Their are four types of blood: A, B, AB, & O.