your blood vessels do increase in size after exercise especially our veins becasue they aid heat when our bodie are working and rising in temperature ,that is why we can see our veins come to the surface of our skin more when we have been exercising.
Vasodilation is relaxation of blood vessels leading to increase in lumen size. Vasoconstriction is contraction of blood vessels leading to decrease in lumen size.
Vasodilates them. Arteries increase in diameter size, this reduces the peripheral resistance on the blood. Not necessarily a good thing.
The size of blood vessels varies enormously, from a diameter of about 25 mm (1 inch) in the aorta to only 8 Ξm in the capillaries.
no
it depends upon the size of blood vessels,some are small in size and some are big,in this situation there is alteration of blood flow,so the speed of blood inside the vessels wont be constant
exercise
The smallest blood vessels are called capillaries.
Blood vessels can form new blood vessels, this is called angiogenesis.
mussel underneath
they are blood vessels that reachout to the cells
muscular
they are blood vessels that reachout to the cells