13 I'm pretty sure
The radial canals carry water to the ampullae and provide suction to the tube feet.
They are the organ of balance.
Echinoderms (which include starfish) have a water vascular system associated with movement in some species and feeding in others. Water is pumped around the system through the ring canal, lateral canals, radial canals, ampulla, podium and to the sucker feet. This water vascular system has a vacuum effect allowing the starfish to suction its many feet to the substrate and release them at its own will.
Balance - they tell your brain which way up you are.
vestibule, semi-circular canals, and cochlea
You wouldnt be able to stay balanced and would lead to major damage in the auditory canals.
A starfish typically has a pentagonal or circular shape at its end or rear, rather than a traditional "tail" shape. This structure helps starfish move and navigate through the water.
how many canals in spain
Starfish generally have five 'arms' which radiate outwards from a circular central body. For more information see the related link below.
semi-circular canals. These are just for balance
The function of semi circular canal in the ear is balance and orientation
They are a type of motion sensor, as the movements of the cilia are communicated to the brain.