Digestion and Excretion
The digestive tract is complete and ciliated, with a mouth, anus and complex stomach. The pattern of the stomach varies according to the mollusks diet. Food is taken up by cells lining the digestive glands arising from the stomach, and then is passed into the blood.
The octopuses kidneys or Metanephridium are distinct organs, not just scattered cells.Excretory functions are carried out by a pair of nephridia, tubular structures that collect fluids from the coelom and exchange salts and other substances with body tissues as the fluid passes along the tubules for excretion.
The octopuses kidneys or Metanephridium are distinct organs, not just scattered cells.Excretory functions are carried out by a pair of nephridia, tubular structures that collect fluids from the coelom and exchange salts and other substances with body tissues as the fluid passes along the tubules for excretion.