The Properties of Body Circulation
Properties of Body Circulation
- The flow of an extracellular fluid like blood and lymph is called circulation
- The organ concerned with or involved in circulation forms the circulatory system
- In animals, every cell needs a constant supply of nutrients oxygen for carrying out various life activities.
- At the same time, there must be a removal of nitrogenous wastes and carbon dioxide.
- All this is done in the body of living animals by the circulatory system.
- The circulation was first studied by Willam Harvey
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Blood vascular system of man or circulatory system of man:
- The blood vascular system of man is the closed type and consists of three parts like heart, blood vessels and blood
Heart
- The human heart is present in the thoracic cavity between the two lungs behind the sternum. It is slightly inclined towards left
- It is roughly conical in shape, broader at the base and narrows towards the apex. It is about 12-14cms. In length and 9cms. in breadth.
- The weight of the human heart in the male is about 300-350gms. And in females, it is about 275gms
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Human Heart
Blood Pressure
- The Blood Pressure | Pulse Pressure
- Hypertension | Hypotension | Cardiac output
- The Magic of Heart Sounds