Yes, they have three sets of maxillipeds, which tear the the food apart. The maxilla also rips the food side to side. The mandible does the final grinding and it also help pass the food into the deepest part of the mouth which contain the lateral/median teeth.
Horizontally
Side to side
The crayfish's mouth is located underneath their head. They are able to chew and crush their food by the mandibles.
The chelipeds, mandibles, mazillae, and mazillipeds
mandables are removed last because attached to them are the maxillae and aixilliped, so those would be removed before, leaving the mandibles last.
Crayfish have muscles. They need them to move.
yes they do have mandibles, they are those weird things by their jaws, they are sometimes big and fuzzy. there are two of them. they are shaped like ovals and they can move them.
Ladybird Beetles have mandibles that move from side to side. They bite off their food with these mandibles and swallow the food.
The mandibles on a crab scoop food into its mouth. In most species they are hard-shelled and can scrape or slice into edible materials. Crabs do not chew their food, so the mandibles separate it into small parts.
A crayfish's mouth is located on the bottom side of its head, just behind its antennae. The crayfish has numerous mouth appendages including 2 sets of maxilla, 3 sets of maxillipeds, and mandibles.
According to the book "The crayfish of Missouri" written by William L. Pflieger "The mouth parts of a crayfish consists of five parts of overlapping structures, each with its own role in crushing and shredding the food before it is ingested." "the largest of these structures are the heavy tooth-like mandibles." The link depicts a detailed image of the mouth parts.
they move their legs
To allow it to move.
Mandibles are jaws. Find the mouth and you will find the mandibles.