Papilla
Red blood cells are too small to contain blood vessels. They are cells and they travel in blood vessels.
it does not contain blood vessels
your skin bleeds because it has blood vessels and your hair has no blood vessels.
Yes, the connective tissues of the epimysium contain the blood vessels and nerves that supply the muscle fibers
yes
the hair contains the blood vessel that nourihes the hair
Only veins contain valves. The valves prevent the backward flow of blood.
The cornea, the clear part of the eye, does not contain blood vessels and it receives oxygen supply directly from the air.
The epidermis, or the outermost layer, contains no blood vessels.
ciculaoty system
deoxyganated blood
The epidermis