It is a lymphatic gland located near the diaphragm on the left side of the body. Along with the lymphoid tissues in the body the spleen plays a vital role in the development of immunity.

(1) Formation of lymphocites and anti-bodies. (2) Formation of RBCs. (3) Storage of RBCs. (4) Helps to remove worn out RBC and foreign particles from the blood stream.

It plays a considerable role in development of immunity. However, it is not essential for life and can be removed if necessary. Removal may lead to susceptability for infection.

A dark brown spongy organ located on the right side of the stomach. It is the largest gland in the human body. It is divided into two lobes with varying weights between 1.359 gms to 1.812 gms.

1. Secretes Bile Juice, Stores Glycogen. 2. Metabolism of the protein and fats. 3. Storage and release of substances, specially Glucose, to maintain constant level in the blood. 4. Performs synthesis, conjugation and transformation of substances - Eg: formation of proteins, dioxication of poisonous substances, production of carbohydrates from proteins etc.

An important agent for digestion, especially fats. Contains water, like salts and pigments. It does not contain any digestive enzymes and therefore not directly involved in the process of digestion. It contains salts like bicarbonate, glycocholates and taurocholate of sodiums. These subsatnces act as: 1. Sodium bicarbonate neutralizes the acid and makes the churned food called Chyme Alkaline. 2. Glycocholate and Taurocholate of sodium break down the fats of tissues into small globules.

A bag like tissue attached to the liver to store the bile juice produced by the liver. It can store upto 60 ml (30-60) of bile.

Claude Bernard - France.

Regulate digestive process.

Bilirubine.

Pleura.

Liver.

Fat.

Glucose.

Destroys old RBCs.

Liver.