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Morphology of the octopus sucker
Morphology of the octopus sucker
The octopus sucker is composed of two primary regions: the upper portion, known as the acetabulum, and the lower portion, called the infundibulum. These regions have distinct mechanical properties that contribute to the sucker’s overall function. The acetabulum is relatively stiff and elastic, helping maintain structural integrity, while the infundibulum is soft and highly compliant, allowing it to conform closely to surfaces and create an effective seal for adhesion.
How the octopus sucker sticks to other objects
How the octopus sucker sticks to other objects
The internal pressure decreases as the chamber deforms and then recovers, creating a pressure differential relative to the external atmospheric pressure. This reduction in internal pressure allows the higher external atmospheric pressure to exert a net force on the sucker, generating suction and enabling it to adhere to the substrate.
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