QS Study

Functions of Circulation

The primary function of circulation is to provide all materials needed for proper function of the body and carries away the waste products of metabolism. The human circulatory system provides oxygen and nutrients to the cells and tissues and removes carbon dioxide and waste products.

  • Delivery of oxygen to tissue.
  • Delivery of other nutrients, such as glucose, amino add, and fatty acid.
  • Removal of carbon dioxide from the tissue.
  • Removal of H+ from a tissue.
  • Maintenance of proper conc. of other ton, in the tissue.
  • Transport of various hormones, and other specific substances to the different tissue.

Oxygen enters the lungs where it passes into the bloodstream via the capillaries. It then enters the heart in the form of oxygenated blood that is pumped throughout the body. Carbon dioxide as a waste product of respiration is carried from the tissues back to the lungs where it is excreted.

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