blood vessels Flashcards
how is blood transported?
through blood vessels
name the 3 types of blood vessels.
artery
vein
capillary
which vessel pumps blood away from the heart?
artery
which vessel pumps blood to the heart?
veins
what do capillaries do?
allow exchange of molecules between blood and body cells
which arteries have gaps in their walls?
capillaries
what size is the capillary lumen?
very small
what size is the artery lumen?
small
what size is the vein lumen?
large
how thick are the capillary walls? what does this do?
one cell thick
allow shorter diffusion pathway
where are capillaries found in?
muscles and lungs
which artery carries oxygenated blood?
aorta artery
which vein carries deoxygenated blood?
vena cava vein
veins have ____ walls which means they have ____ muscular tissue than arteries.
because they carry blood under ___ pressure.
thin walls
less muscular tissue
low pressure
arteries have _____ muscular and elastic fibre walls because they carry blood under ____ pressure.
thick walls
high pressure
