First of all, Heart is a organ which pumps blood for the whole body. Further, Dictionary.com defines it as hollow pump like organ of blood circulation, composed mainly of rhythmically contractile smooth muscles, located in the chest situated between the lungs slightly to the left.
chambers of heart
Similarly HEART has four chambers 1. right artery, right ventricle, left artery, left ventricle. Thus, Right artery receives the blood from all parts of the body through superior and inferior venacava. Also,the right ventricle passes this blood to lungs through pulmonary artery for oxygenation. The left artery receives the oxygenated blood via the pulmonary veins and passes it through mitral valve. the left ventricle pumps the oxygenated blood via the aarota throughout the body. Heart is four chambered organ in mammals and three chambered organ in reptiles and amphibians. In earthworm it is tubular and contractile structure in all invertebrates.
The seat of all emotions.
There are several diseases like blockage, heart attack, cardiomyopathy.
When there is stress or pain in the chest it is symptom of blood pressure or any dysfunction with the heart. good emotions like happiness, love, sympathy , affection, spirit, courage, enthusiasm, joy strengthens the heart . Negative emotions like anger, hatred, jealousy, lust, greed etc compress the heart.
According to Wikipedia, 30% of deaths globally occur due to heart disease. Similarly in high income countries 28-40% of deaths occur.
Coronary heart disease known as Ischemic is arteriosclerosis which means deposit of fatty materials along the walls of arteries. If the deposit is more then arteries narrow down causing pain or breathlessness. This plaque ruptures and exposes the fatty material to the blood. sometimes it forms thrombus and blocks the arteries restricting blood flow to the arteries causing myocardial infraction or unstable angina.It may cause cardiac arrest if not treated. Generally angioplasty or bypass is in severe cases and in mild cases changes in diet & lifestyle along with tablets prescribed by doctor .
This is a situation when there is abnormal thickening or enlargement and weakening or stiffening of heart muscles unable to fully relax during contractions or abnormal heart rhythm. Generally this leads to heart failure in all patients. In athlete this situation can be a reason for cardiac arrest.
Valvular heart disease:
This situation arises when heart valves weaken or is diseased . So, this valves generally allow blood to flow in one direction but either because of leakage or narrowing of valves blood flows back
called regurgitation. valve replacement surgery or open heart surgery
is the only remedy..
Anti arrhythmic drug manipulates the electrolytes flow across cell membrane and modifies Autonomic nervous system’s effect on heart. .Some anticoagulants reduce arrhythmia arterial fibrillation Catheter ablation is another option to treat this condition. Sometimes when situation is serious it calls for open or thorascopic surgery. Cardiac devices such as pacemakers or implantable defibrillators are treating serious life threatening rapid heart rhythms.
All the above situations can lead to this condition. CPR relaxes the tension and moving the patient to hospital is possible ..
Causes : Fatty food stuffs, Quick bite , meat, tinned foods
Lack of exercise or walking
NO LEISURE AND HEAVY MENTAL WORK
SEDENTARY LIFE STYLE.
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