Arthropod Vocabulary Flashcards
Abdomen
The segmented tail area attached to the swimmerets, telson, and uropods
Carapace
The protective shell (exoskeleton) of the cephalothorax.
Cephalic groove
An indentation in the carapace between the head region and the thorax region
Cephalothorax
The combined head and thorax that contains the heart, gills, and stomach
Swimmerets
Five pairs of short appendages on the abdomen are used for swimming.
Tail fan
The telson and the four uropods. It is used for backward swimming
Uropods
Two pairs of appendages on the tail fan that surround the telson
Telson
The single, hind-most extension of the tail fan
Maxillipeds
Crustacean appendages modified to function as mouthparts
Cheliped
One of two big claws used for defense and food handling
Long antennae
Two long, sensory organs towards the front of the crayfish lobster
Antennules
Two short sensory organs towards the front of the crayfish or lobster
Walking legs
Four pairs of long, jointed legs used for walking. The gills are attached to the tops of the walking legs.
Chitin
The substance that makes some arthropod skeletons hard
Green glands
Excretory organs (excrete nitrogen waste/osmoregulation) in crayfish
