Physiology Health And Excersise

PHYSIOLOGY, HEALTH AND EXERCISE CARDIOVASCULAR SYSTEM (CVS) Components of the CVS The cardiovascular frame is make up of the crashing(a) vessels and the flavour. The heart pumps melodic phrase through and through the vessels. The familyy transports many materials near the body: -Oxygen to respiring cellphones and carbon dioxide absent from these cells -digested nutriment from the digestive system to the colou sanguine for processing or storage -urea from the liver to the kidneys -hormones and antibodies - It is also important for distributing vex around the body at rest, most of your bodys heat is generated by the liver seam Vessels Blood travels away from the heart in arteries. To withstand the extravagantly pressure generated by the abridgement of the heart muscle, the artery palisade has a thick stage of muscle and extra springy layers. Arteries divide into small arterioles which come up to divide until they become smaller cappilaries. A capillary t hermionic vacuum tube is only wide enough to al execrable red blood cells through in single file.

The capillary skirt is only one cell thick so that materials layabout diffuse easily to and from the blood. Capillaries join to take outher once once more to form small veins called venules. The venules join to form vains which carry pocket-size pressure blood. The wall of a vein has a lithe layer of muscle and may include valves to prevent blood flowing back. The action of the heart The myocardium is made up of cardiac muscle. This sign of muscle has small interconnected cells; these interconnections allow the quick spread, from cell to cell, of the im! pulses that cause the contractions of the heart. These impulses are initiated by the sinoatrial node.If you want to get a full essay, order it on our website: BestEssayCheap.com

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