Cardiovascular System Circulation of Blood Flashcards
what forms a circulatory system for the flow of blood?
heart, arteries, arterioles, capillaries, venules, veins
venae cavae
largest vein in the body. The superior and inferior venae cavae return blood to the right atrium of the heart
pulmonary artery
artery carrying oxygen-poor blood from the heart to the lungs. Only artery in the body that carries blood deficient in oxygen
pulmonary veins
one of two pairs of vessels carrying oxygenated blood from the lungs to the left of the atrium of the heart. The only veins in the body that carry oxygen-rich (oxygenated) blood
pulmonary circulation
flow of blood from the heart to the lungs and back to the heart
aorta
largest single artery in the body
arteries
the aorta divides into numerous branches called arteries. The largest type of blood vessel; carries oxygenated blood away from the heart to all parts of the body
carotid arteries
two common carotid arteries located on each side of the neck branch from the aorta and provide blood to the head, neck and brain
arterioles
small artery
tissue capillaries
the smallest type of blood vessel. Materials pass to and from the bloodstream through the thin capillary walls
carbon dioxide
gas (waste) released by body cells, transported via veins to the heart, and then to the lungs for exhalation
venules
small veins
veins
a thin-walled vessel that carries blood from body tissues and lungs back to the heart. Veins contain valves to prevent the backflow of blood
systemic circulation
the flow of blood from body tissue to the heart and then from the heart to back to the body tissues
pulse
the beat of the heart as felt through walls of the arteries
