Describe structure of Internal Structure of human Heart with well diagram ?
The heart is one of the most important organs in the human body. It is the main organ of the pulmonary system. Structurally, the human heart is a very complex muscular bag which is separated by a septum. It is located in the upper thoracic cavity at the centre of our chest in between the lungs. The heart lies above the diaphragm and behind the sternum. It is estimated that the size of an individual's heart is roughly equal to the size of his closed fist. The heart of a fully-grown...