the mammalian circulatory system , blood vessels

Cards (11)

what are the three major types of blood vessels
arteries, capillaries, veins
what is the function of arteries 
to transport blood away from the heart
what is the function of veins
carry blood to the heart
what is the function of capillaries
site of exchange between blood and tissues
what does the arteriole look like
c
what is the endothelium in blood vessels 
this is the innermost layer of the vessel and is one cell thick
what property does the endothelium give a blood vessel and why is it important
it provides a smooth lining that reduces friction and resistance to blood flow
what is the function of elastic fibres and smooth muscle in blood vessels
these components make up the middle layer of the vesses
what property does the smooth muscle give the blood vessels 
it allows the blood vessels to widthstand high pressure and contract to push blood along the vessel
what is the function of elastic fibres in blood vessels 
it allows them to stretch and recoil to maintain blood pressure
what are collagen fibres in blood vessels 
these are found on the outer layer and are ressistant to over-stretching