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Vas Deferens

sperm duct


small leg-like structures under the tail of the crayfish

Digestive Gland

near the stomach, it enters the intestine for further digestion and absorption

Abdominal ganglion

Clutch of nerves around the abdominal area.


crayfish's helmet

Cardiac stomach

the enlarged foregut of some crustaceans, echinoderms, and other animals

Ventral nerve cord

Carries message to\/ from body to\/ from ganglia


Center of the tail.


a small antenna or similar organ

Excretory pore

the pore that excrets fluids


opening where food is consumed.


openings in heart


feelers on an arthropod's head that respond to touch, taste, or smell


located behind eye


"food tube"


an area that is approximately central within some larger region


the part of the alimentary canal between the stomach and the anus

dorsal abdominal artery

central artery coming from the heart.


the appendage on a crayfish that aids in swimming

Green gland

one of a pair of glands (believed to have excretory functions) in some crustaceans near the base of the large antennae


opening through which wastes leave the digestive tract

1st pair of swimmerets

determines the sex of the crayfish

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