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[11] [12] Each sucker is a tactile sensor for detecting the surrounding. When the sucker attaches itself on an object, the infundibulum mainly provides adhesion while the central acetabulum is quite free. This provides greater suction on the flat surface; hence, making pressure incredibly low. This is why octopus grip is exceptionally firm.
Cephalopod limbs bear numerous suckers along their ventral surface as in octopus, squid and cuttlefish arms and in clusters at the ends of the tentacles (if present), as in squid and cuttlefish. [9] Each sucker is usually circular and bowl-like and has two distinct parts: an outer shallow cavity called an infundibulum and a central hollow ...
The suckers are flanked by cirri (a pair of these finger-like projections located between each sucker), the longest being around 1.0 to 1.7 × the greatest sucker diameter. The webbing between the arms is terminated on the ventral edge of each arm by a fleshy projection ('web nodule') positioned between suckers 19 to 24 on ventral arms and 24 ...
A sucker in zoology is a specialised attachment organ of an animal. It acts as an adhesion device in parasitic worms, several flatworms, cephalopods, certain fishes, amphibians, and bats. It is a muscular structure for suction on a host or substrate. In parasitic annelids, flatworms and roundworms, suckers are the organs of attachment to the ...
A cephalopod / ˈ s ɛ f ə l ə p ɒ d / is any member of the molluscan class Cephalopoda / s ɛ f ə ˈ l ɒ p ə d ə / (Greek plural κεφαλόποδες, kephalópodes; "head-feet") [3] such as a squid, octopus, cuttlefish, or nautilus.
Its fin span is around 70% of the octopus' total length. The shell is shaped like a letter "U". [1] Its arms have around 60 to 70 suckers each, [4] and these suckers aren't sexually dimorphic. [1] A web covers about 2/3 of its arms. [4] It has a robust shell, with a thick basal portion, and strong attachments from their fins. [5]