Describe the Physiology of the Cardiovascular System in Relation to Energy.

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Describe the physiology of the cardiovascular system in relation to energy.
A.T.P is stored, chemical energy in the cell, without A.T.P we would die. To make A.T.P we need glucose oxygen. Carbon dioxide and heat are the waste products.
The main function of the cardiovascular system in relation to energy is to transport the oxygen and glucose to the cells, and to transport the waste products such as carbon dioxide and urea (waste product from protein digestion) away from the cells and to the lungs or kidneys.
Blood is a liquid connective tissue as it is made up of living cells (red and white). Oxygen is transported in red blood cells, attached to a protein called haemoglobin while nutrients, including glucose, are dissolved in the
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For this reason the muscular wall of the left side is thicker than that of the right side.
The atria and ventricles are separated by valves known as the AV valves. The purpose of these valves is to prevent blood from flowing in the wrong direction. Following the movement of blood from the atrium, into the ventricle, the AV valve snaps shut which causes the first heart sound of the heart beat. The beat is caused by the closing of two other valves.
Meaning The Sa node and Av node work together, forcing blood into the ventricles, which contract, forcing the blood to leave from the left side of the heart. The blood that enters the right side of the heart enters through veins as it is under less pressure. Blood with co2 in it will exit the right side of the heart through the pulmonary artery to the lungs where gaseous exchange occurs.

Arteries and veins run parallel throughout the body, with a web-like network of capillaries, embedded in tissue, connecting them.
Arteries:
The arteries carry the blood away from the heart they have thick walls due to high blood pressure and the walls begin to get narrower as they have left the heart, this also increases pressure of the blood. This means the blood carrying the oxygen and glucose will flow around the body quickly and efficiently. The walls of the arteries are made of smooth muscle and lines with thin, smooth epithelial tissue

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