the heart
The heart is located in the middle of the chest, tilted to the left. The human heart is characterized by the smallest muscle in the body, which is the size of the fist. The heart begins to throb before the birth of the human being is still a fetus in the womb of his mother, and the estimated number of heart beats per minute about 70 beats, and doubles this number when exercising or feeling afraid.
Why beats the heart
The main function of the heart is to pump blood all over the body. The blood with low oxygen content and a high ratio of the second peroxide of the body to the right atrium, which in turn pumps blood through the pulmonary artery towards the lungs, flows through the blood vessels The air inside the lungs is exchanged. The oxygen in the lungs moves to the blood, the carbon dioxide moves from the blood to the lungs, the blood moves to the left atrium, the left ventricle pumps oxygen-laden blood to all the organs of the body, Operation l Blood can be transferred to every cell of the body from the toes to the head, causing oxygen to break out and death immediately.
Heart disease
Congestive heart
Is the condition in which the heart can not pump the necessary amounts of blood into the tissues, which usually occur as a result of a problem in the heart muscle, or a bug in the arteries, or because of the size of the heart because of the expansion of the membrane.
Open arterial canal
It is a congenital defect that may affect infants sometimes. The arterial artery connecting the pulmonary artery and the aorta remains open and does not automatically shut down immediately after birth, showing signs of rapid breathing, lack of growth, and weight loss.
heart attack
Is a condition that occurs due to insufficient blood circulation of the heart due to narrow coronary arteries or convulsions, and accompanied by pain in the chest area moves to the shoulder and left arm and jaw lower.
Disorder systems
Is a heart rhythm disorder, which accelerates or slows down with irregularity, leading to the incidence of sinus jugular and rapid contraction, in addition to ventricular fibrillation and ventricular atrial fibrillation.