Three places that blood does not reach
It is known that blood reaches every place in the human body and every cell, but there are three parts of the human body that are not connected to blood.
The cornea of the eye: which we see and which takes many colors according to different people, the blood does not reach it because the oxygen it needs is obtained from the outside air in contact with the eye.
.. Hair: A single hair consists of a follicle located inside a pocket in the skin, which is usually nourished with blood. As for the hair shaft, blood cannot reach it because it is a dead keratinocyte. Glory be to God, if the hair shaft is fed with blood and nerves, it will be impossible for us to cut and form hair.
.. Nails: The nail print is the third part that blood does not reach because it is also a dead keratin cell that protects the tips of the fingers that originate mainly from the skin.
Source: websites