Essay about Heart and Heart Chambers

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1
Acute heart failure heart failure that develops suddenly (often due to a heart attack). Although it may be severe initially, it may only last for a brief time and improve rapidly.

2.
Anaemia
A low number of red blood cells or a low amount of haemoglobin in your blood cells, resulting in reduced oxygen delivery to tissues and organs.

3.
Angina
pain or discomfort in the chest as a result of reduced blood supply to a part of the heart muscle. It is usually caused by coronary artery disease.

4.
Angiography
a test using an injection of a liquid dye that is visible on x-rays to identify blockages in your coronary arteries.

5.
Angiotensin II a hormone produced naturally by your kidneys that causes constriction of your blood vessels, reduces urine production and increases your blood pressure.

6.
Arrhythmia

an irregular heart rhythm

7.
Asthma
a respiratory condition that causes narrowing of the lung passageways, making breathing out especially difficult.

8.
Atria
the smaller, upper chambers of the heart that fill the larger ventricles.

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Atril fibrillation irregular and often rapid beating of the left upper chamber (atrium) of your heart leading to irregular beating of the ventricles.

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Atrium
Upper Chambers

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Beta blockers a class of medicines used to slow your heart rate or lower your blood pressure.

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Cardiac MRI a type of heart imaging using a powerful magnetic field to provide very detailed images of the heart

13
Cardiomyopathy
a condition that causes the heart muscle to become enlarged, abnormally thick or rigid. There are many causes of cardiomyopathy.

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Cholesterol
a waxy substance that is important for many functions in the body and is present in many foods. There are several types of cholesterol. Too much low-density cholesterol can lead to heart disease.

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Chronic heart failure long-term heart failure that develops slowly over time, may gradually get worse and requires long-term therapy

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Congenital
existing at birth, for example a condition that is present at birth

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Congestion
an excess of fluid in a part of the body.

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Coronary arteries: blood vessels that supply blood to the heart muscle.

19
Cyanosis:
a bluish discoloration of the skin due to a lack of oxygen in the blood that is usually caused by a congenital heart defect

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Digoxin
a medicine used to control abnormal heart rhythms and improve performance.

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Dilatation
enlargement, or expansion, of a vessel or chamber.

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Diuretic
a class of medicines that act on the kidneys to produce more urine, reducing fluid retention and congestion

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Echocardiogram:
a test that uses ultrasound to view the heart chambers, valves and surrounding tissues. Function and blood flow can be assessed.

24
Electrocardiogram:
a test that records the electrical activity of the heart. Information about heart rate, rhythm and electrical conduction are recorded. Evidence of damage, ischaemia and hypertrophy can be identified

25
Glucose
a sugar that is an essential source of energy for the body.

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Haemoglobin
a complex protein-iron compound in the blood that carries oxygen to the cells from the lungs and carbon dioxide away from the cells to the lungs.

27
Haemorrhage
the medical term for bleeding. In common usage, a haemorrhage means particularly severe bleeding

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Hypertension
persistently high blood pressure.

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Hypertrophy
an increase in size of a tissue, organ or muscle

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Insulin
a hormone produced by the pancreas that enables the body to use glucose to create energy

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Ischaemia
a loss or reduction of blood flow (and therefore oxygen) to tissues

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Myalgia
pain in a muscle or muscles.

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Myocarditis
an acute inflammation of the heart muscle. It may lead to cardiomyopathy

34
Nitroglycerin
a medicine used to treat episodes of angina. It is usually administered under the
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