they are called capillaries
capillaries
Capillaries are the tiniest of the blood vessels. They connect veins and arteries, and are the site of gas exchange.
The capillaries.
Capillaries are the tiniest of the blood vessels. They connect arteries and veins.
Capillaries are the smallest blood vessels. They connect arteries and veins.
Arteries divide into smaller vessels called Arteriols. Arteriols subdivide into even smaller vessels called capillaries, where oxygen, nutrients, hormones are delivered to the tissues of the body. Waste products are also picked up by capillaries and delivered to venules which grow into larger vessels called veins. Veins deliver deoxygenated blood back to the heart.
Capillaries
Arteries. Because the capilaries connect the arteries to the vein as Veins carries blood back to the heart.
The three types of blood vessels in the body are veins, arteries, and capillaries. Arteries carry blood away from the heart. Veins carry blood to the heart. Capillaries are microscopic vessels that are found in the lungs and muscles.
The tubes that blood travels around the body in are called blood vessels. There are three main types of blood vessels: arteries, veins, and capillaries. Arteries carry blood away from the heart, veins carry blood back to the heart, and capillaries connect the arteries and veins.
Capillaries are the smallest tubes that carry blood (blood vessels). They connect veins and arteries.