how are the lungs involved in the circulatory system?
oxygen is moved into the bloodstream and carried through your body
where do arteries carry blood?
arteries carry blood away from the heart
what is the function of blood plasma
to transport digested food
what do the valves in the heart do?
valves prevent backwards flow of blood
where do veins carry blood?
carry blood back to heart
oxygen is exchanged for what?
waste gas called carbon dioxide
the circulatory system carries what?
oxygen, nutrients, and hormones
which type of blood vessel has a 'pulse'?
artery
blood passes through a what before leaving each chamber of the heart
valve
what system do veins work with?
the vascular system, also called the circulatory system
what is it called when the oxygen in inhaled air passes across the thin lining of the air sacs and into the blood vessels?
diffusion
where do the arteries carry blood to store it?
to cells
which type of blood vessel has valves inside?
veins contain valves to prevent backflow of blood
what is the circulation called of blood in the arteries and veins that supply the heart muscle
coronary circulation
which veins carries oxygenated blood?
pulmonary veins
what connects the lungs to the heart?
how many arteries are in the body?
more than 20
artery
the network of nodes specialized cells and electrical signals that keep your heart beating is called?
is called conduction
what is the smallest vein in the body
venules
how are the lungs protected?
mucus
which artery has the highest flow?
aorta
which blood vessel leaves the lung?
what is happening when the valves in the heart open and close?
heart beating sounds
the main vein in the human body
superior vena cava