To enable adequate movement during mydriasis (dilation of the pupil) and miosis (pupil closing).
The heart is a pump and move blood through the blood vessels.
Yes, somewhat. Lymph doesn't circulate like blood but has a system parallel to the blood vessels.
Blood vessels are the tubes that carry blood. Blood vessels include arteries, veins, and capillaries.
veinsAnswerArteries are the blood vessels that carry blood away from the heart, not veins. Veins are the blood vessels that carry blood towards the heart. The only exceptions being the pulmonary and umbilical veins, both of which carry oxygenated blood.
Blood vessels are the tubes that carry blood. The three types of blood vessels are arteries, capillaries, and veins.
The iris.
smooth muscle
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Blood Vessels-are the passageway of blood.
Blood Vessels-are the passageway of blood.
Nicotine is the blood vessels' constrictor. Not all blood vessels, of course, but mainly the peripheral blood vessels, including the brain capillary blood vessels.
they are blood vessels
When your blood sugar is too high damage can be done to the blood vessels, including those in your eyes. When this happens new blood vessels may develop over the retina causing scar tissue to develop. This can result in a detached retina and cause blindness if not taken care of. If a blood vessel grows on the iris it can lead to glaucoma as well.
blood vessels. doppus
Arteries are blood vessels that direct blood away from the heart.Capillaries are the smallest blood vessels in your body.Veins are blood vessels that direct the blood back to the heart.
blood vessels are the passageway of blood throughout the body
Red blood cells are too small to contain blood vessels. They are cells and they travel in blood vessels.