Both alimentary canal and body cavity functions of Nidaria are carried out by cilantrones. Cilenterone performs physiological functions such as digestion, transport of nutrients, respiration, excretion, excretion of waste products, etc. Food material is taken up in the cilantro and extracellular and intracellular digestion is carried out. Undigested food and waste products are excreted through the stomata. So Cilenteron is called Gastrovascular cavity or Gastrovascular cavity. Dr. Siddiq Publications