Want this question answered?
Artery -> Arteriole -> Capillary -> Venule -> Vein
An arteriole transports oxygenated blood from the arteries to the capillary beds and a venule transports de-oxygenated blood from the capillary beds to the veins.
By the process of diffusion.
venule(veins)
Water and dissolved substances leave the arteriole end of the capillary due to hydrostatic pressure being higher than osmotic pressure and enter the venule of the capillary due to osmotic pressure being higher than hydrostatic pressure.
A venule is a very small blood vessel. It drains a capillary bed and meets up with other venules which drain blood into larger vessels called veins.
Either a arteriole on the artery side or a venule on the vein side of the bed.
Blood leaves a capillary through a venule, a small vein. At that point, the blood is making its journey back towards the heart.
The arterioles wall contains smooth muscle and elastic fibers and is six times thicker to handle the higher pressure in the arterioles. The venule is like a giant capillary.
The terminal arteriole feeding the capillary bed leads into a metarteriole, which is continous with the thoroughfare channel. The thoroughfare channel, in turn, joins the postcapillary venue that drains the capillary bed.
It is unique from other capillary beds in that it is supplied with and drained by arterioles, the afferent arteriole and efferent arteriole, respectively.
It's called blood vessel. it can be of following type viz Artery, Vein, Arteriole, Venule, Capillary.