Tiny bits
of information- The Heart
Circulatory
system in higher forms of life consists of the heart, blood, and blood vessels.
The circulatory system plays the most important role in the transport of
vessels throughout the body.
Heart is a
completely muscular organ. In man, the position of the heart is behind the
sternum in the thoracic cavity, between the lungs, tilted slightly towards the
left.Our heart is believed to be as big as our clenched fist.
The adult
human heart is approximately 12 centimeters long, 9 centimeters broad and
weighs about 300 g. The heart is roughly conical shape with the upper end
broader than the lower. A double membrane called pericardium covers the heart.
The pericardial fluid that fills the space between the membranes protects the
heart and also helps it to function properly
No comments:
Post a Comment