In Englishman named William Harvey was first to describe that blood circulates by blood vessels.
The first scientist to describe that the heart circulates blood was the Arabian physician Ibn al-Nafis, in 1242 AD.
he was the first person to discover that blood has oxogen in it
It originates there. First you breathe in and you add oxygen to you blood streams, by the way of capillaries. It then circulates from the heart to every where else.
Quite the contrary actually. Smoking will raise blood pressure and dilate vessels. Hope this helps!
The African-Amrican, Dr. Charles Drew, was the first person to discover how to store blood. Hope this helped! :D
I think that your blood circulates to keep you alive first of all and to keep the rest of your body energized. If your blood stayed in one place I think it would be a blood clot.
coronary arteries
Long term alcohol use causes the blood vessels to become more fragile and prone to rupture. Alcoholics have a much higher risk of stroke, aneurysms esophageal varicies and bleeding disorders.
Nutrients and oxygen have to get to the outside of the heart. So the blood vessels on the outside have that job. The nutrients and oxygen can't get to the cardiac muscle from inside the heart. Blood vessels that lead from the heart that are high in oxygen and nutrients have their first branch off the aorta that goes to these blood vessels. That's how important these vessels are to the heart and how it functions.
That would be the Carotid arteries.
Hemostasis is the name of the response to broken blood vessels. This response occurs when blood ruptures or leaks out of the body's vessels. The body reacts with a vascular plugging effect that clogs the leakage of the blood vessel.
Hemostasis is the name of the response to broken blood vessels. This response occurs when blood ruptures or leaks out of the body's vessels. The body reacts with a vascular plugging effect that clogs the leakage of the blood vessel.