veins are blood vessels
A capillary is the smallest blood vessel. It connects arteries and veins.
Venules, they are smaller than Veins
Veins
The capillaries are the blood vessels that connect arteries and veins. Capillaries are the site of gas exchange in the body.
veins, maybe
veins
in the veins
veins from the body or the pulmonary veins from the lungs
The veins carry blood toward the capillaries.
Veins
blood vessels that carry blood toward the heart are called veins.
That would be the capillary