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Heart's Anatomy

The heart is one of the most important organs in the human body. It supplies blood to all the body parts and ensures that each organ is receiving the right amount of oxygen to keep the human body working and in right condition. The heart is safely set between the lungs, more towards the left and behind the sternum to save it from any kind of damage. It is a little more towards the left side of the human body.

  • Epicardium : The outermost layer or the visceral pericardium
  • Myocardium : the middle wall that is made up of contractile cardiac muscle
  • Endocardium : The innermost wall that is filled and in contact with blood the human heart pumps

The human heart has four chambers, divided into a set of two atria and ventricles. Valves that ensure proper blood movements connect the chambers of the human heart to one another and the purification of blood through rhythmic contractions and movement to lungs, deoxygenated blood is oxygenated.

The blood first enters the heart's right atrium by the venae cavae. The right atrium pumps the blood into the right ventricle through the tricuspid valve that connects the two ventricles. The ventricle pumps the blood out to the lungs through the pulmonary arteries. Once the blood is in left ventricle, it is pumped into muscle action into the aorta that supplies blood to the human body in a systematic manner.