State the role and function of lymph in human transport system.
A. Lymph is a circulatory fluid. It flows in lymph vessels.
- Lymph (is also called tissue fluid) is colourless.
- It consists of lymphocytes which kill germs and protect the human body from infections.
- Lymph carries digested and absorbed fat from intestine.
- It drains excess fluid from extra cellular Space back into the blood.
- Its flow is unidirectional i.e., from tissues -> lymph capillaries -» vein -» heart.