Heart and Blood Vessels Flashcards
the cardiovascular system includes
heart and blood vessels
the cardiovascular system functions to
generate blood pressure, transport blood, exchanges nutrients and wastes at capillaries, and regulates blood flow
blood is refreshed in the
lung, kidneys, intestine, and liver
lymphatic vessels function
collect excess fluid surrounding tissues and return it to the cardiovascular system
pulmonary circuit
sends deoxygenated blood to the lungs to pick up oxygen and get rid of CO2
systemic circuit
sends oxygenated blood and nutrients to the body cells and removes wastes
pulmonary meaning
lungs
deoxygenated meaning
depleted of oxygen
where do arteries carry blood
away from the heart
arteries are
deep
veins are
superficial
where do veins carry blood
toward the heart
the pulmonary arteries leaving the right ventricle for the lungs carry what type of blood
deoxygenated
the pulmonary veins carry what kind of blood
oxygenated
in the pulmonary circuit where does blood take up oxygen
the lungs
in the systemic circuit where is oxygenated blood distributed to
body tissues
what is the main pathway of blood in the body
heart arteries arterioles capillaries venules veins back to the heart
arteries and arterioles
carry blood away from the heart
what are the three layers of artery and arteriole walls
thin inner epithelium, thick smooth muscle, outer connective tisse
arterioles are
small arteries that regulate blood pressure
capillaries are
microscopic vessels between arterioles and venules
capillaries are made of
one layer of epithelial tissue
capillaries form
beds of vessels where exchange with body cells occurs
venules are
small veins that receive blood from the capillaries
