arteries carry oxygenated blood from the heart, to the cells. arterioles do the same thing, but they are small.
veins carry deoxygenated blood to the heart. venules do the same as veins, but they are also small.
capillaries are the place where the exchange takes place, between oxygenated and deoxygenated.
Bones do have blood vessels running through them in a soft tissue called bone marrow, which produces blood cells. However, the hard outer layer of bones, called compact bone, is not supplied with blood vessels on its surface. The periosteum, a thin membrane surrounding bones, is responsible for supplying blood to the outer layer of bones.
Cholesterol, blood clots, fat embolism', even plastic from a hypodermic needle that has broken off can block blood vessles.
The auricles of the heart help to increase the volume of blood that the heart can hold and pump, which improves the efficiency of blood flow and cardiac function.
No, only venous vessels have valves. Valves in veins help prevent the backflow of blood and aid in promoting blood flow back to the heart. Arterial vessels do not have valves because blood in arteries is under higher pressure and flows away from the heart.
Yes, flies have blood in them. Their blood is called hemolymph and it serves a similar function to blood in other animals.
veins
VEINS
The artery does
Capillaries.
they bring oxygen to the brain
cappilleries
the pulmonary veins
OK, by definition we have blood. Do you want to know what blood is made of?
There are 96 000 km
2
The Artery
atherosclerosis