Oxygen, Blood, Iron and Minerals
The cells of the heart are supplied with blood through the hearts own artery. The artery that supplies the heart blood is known as the coronary artery.
The aorta supplies blood to the heart.
Lungs, brain, heart
The heart muscle is supplied by blood vessels called coronaries.
Coronary Arteries
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At least 320 J
The heart pumps blood around your body. Without blood, your body parts cannot get the fuel they need - oxygen and food. The heart has to keep pumping so that all of your body is supplied with fuel. If your heart stops pumping, your blood stops flowing and you will die as your body parts run out of nutrients and oxygen.
No the pulmonary artery takes blood to the lungs to be oxygenated. The heart is supplied by the coronary arteries.
The thyroid.
In a market system, price fluctuations must occur for quantity demanded to continually be equated with quantity supplied.
Exercising requires energy which requires oxygen to make. After the initial burst of energy is used up, not enough oxygen is being supplied to the heart so it then must work harder to pump blood. Therefore the lack of energy causes lack of oxygen causes heart to beat faster to compensate.