Capillaries are the tiny tubes that carry blood. These tubes connect arteries and veins.
Capillaries are the tiniest of the blood vessels. They connect arteries and veins.
Capillaries are the tiny tubes that carry blood. These vessel connect small arteries to small veins, and are the site of gas exchange.
The tiny tubes that carry blood are the capillaries. Capillaries connect arteries and veins.
Capillaries are the tiniest blood vessels. They connect arteries and veins.
The tubes that arteries divide into are called arterioles. Arterioles are smaller blood vessels that branch off from arteries and lead to capillaries, where the exchange of oxygen, nutrients, and waste occurs. They play a crucial role in regulating blood flow and blood pressure within the circulatory system.
Capillaries are the tiniest blood vessels. They are the site of gas exchange and connect veins and arteries.
Capillaries are the smallest of the blood vessels, the tubes that carry blood. They connect arteries and veins.
Capillaries. From the arteries, arterioles carry the blood, and at their ends they have a minute sphincter beyond which they are venules. The tiny sphincters may play a part in stopping bleeding.
Arteries are the tubes that carry blood away from the heart. The main arteries that do so are the pulmonary artery and the aorta.
Veins don't have pulses, arteries have pulses. Arteries are blood supply tubes, veins are blood return tubes. Between the arteries and the veins blood passes through tiny tubes called capillaries. The pressure changes that cause the pulse can't pass through these tiny tubes.
Tubes connected to the heart are called arteries and veins.