GENERAL HISTOLOGY

Detailed explanation-1: -The starfish forces open the shell with suction disks on the underside of its body, and then inserts its stomach membranes through its mouth into the opening of the shell. Digestive juices break down the shellfish’s body, which is then absorbed into the starfish’s stomach.

Detailed explanation-2: -Starfish can eat outside their body Due to their tiny mouth on the underside of their body, starfish have adapted an ingenious way of eating things larger than it can fit in their mouth. They have a stomach that can digest food outside their body, so that it can fit in their mouth.

Detailed explanation-3: -Having created a tiny gap, the starfish then evert their stomach out of their mouth, through the gap and into the body of the prey–where they proceed to digest the soft tissues of the prey into a soup-like mixture, which is then drawn back into the starfish as food.

Detailed explanation-4: -Stomach. A sea star has 2 stomachs, the cardiac stomach and the pyloric stomach. It can push the cardiac stomach out of its mouth, in the centre of its underside, to engulf prey or insert it into prey (between 2 shells, for example). The stomach then secretes a powerful digestive enzyme to break down the prey.