metarterioles when resistance is low
Tissue without capillaries is called avascular tissue. Examples of avascular tissue include:CartilageEpitheliaCorneaLensAll organs contain blood vessels.
histamine
capillary
this is possible because there are alternate branches that bypass capillary beds.
Nicotine is the blood vessels' constrictor. Not all blood vessels, of course, but mainly the peripheral blood vessels, including the brain capillary blood vessels.
Capillary
artery- vein- capillary
capillary blood sugar vs venous blood sdugar
venule(veins)
Artery, Vein and Capillary
A capillary is hollow. It is the smallest of the blood vessels, the tubes that carry blood.
Capillary