Where is the location of the heart in the human body
The heart is a hollow muscle organ that pumps blood through the blood vessels within the circulatory system. It is the primary organ of the circulatory system. It is located in the middle of the chest. It tends to the left a little. It is the size of the fist. It is the strongest muscle in the human body. Pulse. At one minute, the heartbeat is seventy beats, and that number increases when doing exercise.
External structure of the heart
The heart is covered with a membrane called “pericardium”, a sacral fibrous sac containing little fluid. It is divided into two parts: the pericardium, which is connected to the central ligament of the diaphragm, and the pericardium, which connects directly to the heart and then the heart muscle. Muscle has different characteristics than other muscles, and contract continuously, and the wall of the heart it contains three layers, namely: endothelium, the heart muscle, and pericardium.
The heart contains four cavities: the right atrium, the left atrium from the top, the right ventricle, the left ventricle from the bottom, and separates each of the atrium and valve valves from the atria. The ventricles are a barrier known as the ventricular atrial fissure. There are two sides of the heart, And flat dorsal face.
Internal structure of the heart
The internal structure of the heart consists of ventricular valves that enable the blood to pass from the atria to the ventricles without turning in the opposite direction. The separation between each atrium and the ventricular atrium of the ventricle is between the left atrium and the left ventricle between the mitral valve and the right atrium, The right LED triplex, as there are crescent valves at the base of each artery emitted from the heart.
Arteries and veins
Arteries are blood vessels that transfer blood from the heart to other organs. The blood carries carbon dioxide through the pulmonary artery to be filtered. The aortic artery carries the oxygenated blood to the organs to complete its metabolism. The veins are vessels that return blood from organs to the heart, And the blood is oxygenated; because of his return from the lungs to the heart.
Heart disease
- Congestive heart: This disease causes the inability to pump sufficient amounts of blood into the tissues, due to the presence of a heart bug, or due to high arterial pressure.
- heart attack: It is due to insufficient cardiovascular perfusion due to coronary artery spasm or narrowing.
- System disorders: Heart arrhythmias occur in a way that may be rapid, or slow.