The heart is a muscular cone-shaped organ about the size of a clenched fist of the same person.
It is located in the upper body (chest area) between the lungs, and with its pointed end (called the apex) downwards, forwards, and pointing towards the left. The main purpose of the heart is to pump blood around the body.
The basic structure of the heart (illustrated above) may be described as follows:
The Heart is divided into separate right and left sections by theinterventricular septum, or "septum" when the context is clearly that of the heart. Each of these (right and left) sections is also divided into upper and lower compartments known as atriaand ventricles, respectively.
The four main chambres of the heart are therefore the:
Monday, July 4, 2011
Biology- The structure of the Heart
Posted by Lee Sheng Kwong at 7:02 AM