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The circulatory system. Medical Importance & Disorders. Bernadette Morillo and Matthew Lim FE. One of the Most Important Body Systems. Why? This system has the ability to feed and oxygenate organs throughout the body It keeps body temperature stable

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The circulatory system

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    1. The circulatory system Medical Importance & Disorders Bernadette Morillo and Matthew Lim FE

    2. One of the Most Important Body Systems Why? • This system has the ability to feed and oxygenate organs throughout the body • It keeps body temperature stable • It also helps in aiding in the fight against infections

    3. It has the ability to oxygenate different organs How? • When the lungs take in oxygen, the heart pumps the oxygen into depleted blood cells, enriching them and sending them on their path throughout the body. • Blood cells also absorb nutrients and vitamins that are distributed to organs on the circulatory loop around the body.

    4. It stabilizes body temperature How? • Humans can only survive within a certain temperature range; rise too high or drop too low and death can follow quickly. • When a body grows too hot, capillaries swell near the skin, allowing some of the excess heat to push through the skin and evaporate. • When cold, the capillaries will contract, keeping heat in the core of the body as a means of keeping essential organs warm and functioning.

    5. It aids in fighting infection and bacteria How? • When a body detects that it is under attack by an infection, white blood cells begin to race to the site of the attack, using the pathways of circulation to reach their goal. • If the circulatory system is not functioning properly, white blood cells may be slowed down, giving the infection time to grow and strengthen.

    6. It is a very important body system • Without a properly functioning circulatory system, organs may suffer from malnourishment and lack of oxygen, losing their ability to continue their vital work. • The importance of the circulatory system is so crucial that many medical experts encourage a regular routine of maintenance to help it continue to run as needed.

    7. Circulatory system disorders

    8. Angina • It is the severe and recurrent chest discomfort and pain • It is due to lack of blood supply and/or oxygen supply in the muscles of the heart & constriction of the blood vessels

    9. Arrhythmia • The symptom is irregular heart rhythm, in which the heart beats abnormally, either at a slower rate or faster rate • it is found to be a congenital problem and results from a heart defect

    10. Atherosclerosis • It is a blood circulation problem, resulting from accumulation of fatty deposits in the walls of the blood vessels, especially arteries •  Over a period of time, the arterial walls harden and lose their elasticity. 

    11. Cardiomyopathy • It is caused due to weakening of the heart muscles or myocardium •  In the early stages, the ventricular muscles or muscles of the lower heart chamber are affected. If left untreated, it spreads to the upper heart muscles.

    12. Congenital Heart Defect • It is present at birth and may be mild or severe • The exact cause of congenital heart disease is not known. • In some cases, genetic problems cause this defect, while others develop without any reason.

    13. Coronary Artery Disease •  It is caused due to atherosclerosis, i.e., accumulation of plaque in the coronary arterial walls, which indirectly impairs the blood supply to the heart

    14. Hypertension • This happens when the blood pressure (systolic and diastolic) reading remains consistently higher than the normal recommended level • Hypertension causes damage to the heart and blood vessels

    15. Hypercholesterolemia • It is characterized by an elevated cholesterol level • There are two primary types of cholesterol, namely, low-density lipoproteins (LDL) or bad cholesterol and high-density lipoproteins (HDL) or good cholesterol. 

    16. Peripheral Vascular Disease • The deposition of fatty acids in the arterial walls. • Symptoms of peripheral vascular disease are tingling, numbness, and other complications.

    17. Rheumatic Heart Disease • The antibodies produced by the body in response to bacterial infection falsely attack the body parts, including the cardiac valves and muscles

    18. References • •