What Can the Starfish Do with Its 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...
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.
How does a starfish use its stomach to eat?
A starfish feeds by first extending its stomach out of its mouth and over the digestible parts of its prey, such as mussels and clams. The prey tissue is partially digested externally before the soup-like “chowder” produced is drawn back into its 10 digestive glands.
Do starfish eject their stomach?
The sea star has a feeding method unlike any other; it secures its prey with its tube feet and pries it open—like the shells of bivalve (clams and mussels are favorites!), and then ejects its stomach from its own body, placing it over the digestible parts of the prey.
Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.
