Capillaries refer to the tiny blood vessels through which blood, oxygen, and nutrients are transported into the cells.
The capillaries are generally 5 to 10 micrometres in diameter.
Generally, capillaries contain two layers of cells: endothelial cells and epithelial cells.
The capillaries form a network in the whole body.
Arteries and veins are connected via capillaries.
They exchange oxygen, nutrients, carbon dioxide, and waste products.
Besides, capillaries are also involved in enabling new blood cells into our bloodstream, forming the blood-brain barrier, transporting hormones to specific organs, removing defective RBCs and bacteria, etc.
