crustacea
Antennae
Head that functions as an organ for touch.
Mandible
Appendages used for cutting, grinding, and holding located behind the antennae.
Maxillae
2 pairs of them that function as respiratory and feeding organs.
Biramous
They are divided into 2 parts
Telson
The last division of the body of the Crustacean.
Uropod
Appendages of the last body segment of the Crustacean
Carapace
Part of the exoskeleton that covers the cephalothorax.
Gonopore
Genital pore
Flexor
Muscles that pull in a specific structure.
Extensor
Muscles that straighten out a specific structure.
Sinus
A blood filled space on the venous side of the circulatory system that produces numerous hemolymph borne agents.
antennal/maxillary/green gland
Glands located in the antennae, that serve as excretory glands.
Cuticle
Outermost layer of skin. Their exoskeleton.
Ecdysis
Molting or shedding an outer cuticular layer.
Copepod
Subclass of small Crustaceans that are found in the sea and nearly every fresh water environment
Isopod
Small sessile-eyed aquatic or terrestrial crustaceans with the body composed of seven free thoracic segments each bearing a pair of similar legs
Decapod
Crustaceans as shrimps, lobsters, and crabs with five pairs of thoracic appendages
Chelae
Pincers or claws at the end of crustaceans appendages.
Branchiopod
Aquatic crustaceans typically having a carapace and many pairs of leaflike appendages used for swimming as well as respiration and feeding
nauplius (nauplii):
A crustacean larva in usually the first stage after leaving the egg and with three pairs of appendages, a median eye, and little or no segmentation
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