these are not called blood tubes they are called blood vessels and their are three types of blood vessels
arteries which divides into arterioles and arterioles re divide into capillaries capillaries join to form venule and venule join to form veins.
the three main tubes that blood can pass through in the circulatory system are the arteries, veins, and capillaries.
the heart pumps the blood to different part of the body
The tiniest tubes that carry blood are the capillaries. These connect arteries and veins.
Blood vessels are the tubes through which blood travels. They include veins, capillaries, and arteries.
The different types of tubes used for blood collection include serum tubes, plasma tubes, anticoagulant tubes, and specialized tubes for specific tests.
blood vessels
there are holes/tubes in each valve, and as air passes through them different sounds come out when you change the path.
Tubes in the kidney. I'm not sure what they are called, though.
Blood vessels are any of the tubes through which blood flows through the body.
For different blood types.
blood vessels
The blood travels through veins, arteries, and capalaries.