The functions of the organ systems

The following analysis of organ systems gives an indication of its role in oriental terms. Each organ system and its related meridian has a common abbreviation, which is given in brackets after the full name below.

Lungs (LG): take in air and the Ki that it contains, converting them into Ki for body use and circulating it to the other channels; this meridian also supports mental positivity.
Large Intestine (LI): refers chiefly to the colon; it removes the fluids from food and excretes unwanted solid matter; also involved in issues of 'holding in' and of self-confidence.
Stomach (ST): prepares food for digestion and extracts Ki and nutrients, to be directed to the spleen or small intestine; is also related to functioning of the intellect.
Spleen (SP): transforms energy from food into Ki for the body, clears old cells from blood and plays a major part in the immune system. In Chinese medicine, it is grouped with the pancreas, which produces hormones and enzymes to aid digestion, and control blood sugar and fat metabolism; also governs the ability to mentally concentrate and analyze.
Heart (HT): circulates blood and controls blood vessels. The heart is seen as the seat of the consciousness and feelings.
Small Intestine (SI): receives food from the stomach, separates and absorbs nourishment, before passing the remainder to the large intestine and bladder; also influences mental discrimination.
Bladder (BL): temporarily stores and excretes waste fluids; also associated with courage.
Kidneys (KD): store and provide Ki for the organs and for the fundamental life processes of birth, growth and reproduction; they also maintain fluid levels and eliminate toxic waste products. The kidneys also affect will-power.
Heart Governor (HG): Supports the heart functions, including blood circulation; influences human relationships. (Also known as Heart Protector or Pericardium.)
Triple Heater (TIT): distributes Ki through the body and regulates heat; enables emotional interaction with others. (Also known as Triple Burner or Triple Warmer.)
Gall Bladder (GB): stores bile which the liver produces, and supports the liver functions; is also involved in making decisions, going forward and taking action.
Liver (IV): stores blood, and facilitates all flow of Ki in the body; removes toxic substances from the small intestine; also associated with creativity, humour and planning.
Governing Vessel (GV): controls the meridians of the front of the body and inside of limbs.
Conception Vessel (CV): controls the meridians of the back of the body and outside of limbs.
Each organ system further affects particular emotional states as well as other aspects of physical health. These are discussed more fully under The Five Elements.