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Crayfish parts practice Name this pincher claw cheliped Give a function. Catch food, defense Image by Riedell/Vanderwal © 2005 The arrows are pointing at the _________________ Green glands Image by Riedell/Vanderwal © 2005 Give a function. Excrete nitrogen waste; osmoregulation Give the body system. excretory Image by Riedell/Vanderwal © 2005 The arrows are pointing at the maxillipeds _________________ Give a function. Touch, taste, manipulate food The arrows are pointing at the Walking legs _______________ Name the body segment these are attached to. thorax Image by Riedell/Vanderwal © 2005 Image by Riedell/Vanderwal © 2005 #1 #2 Name #1 antennules Give a function. Sense touch, taste, & equilibrium Image by Riedell/Vanderwal © 2005 The arrows are pointing at the intestine _________________ Give a function. Finish digestion, absorb nutrients, collect/remove digestive waste Name the body system. digestive Image by Riedell/Vanderwal © 2005 This thin white line is the Ventral nerve cord _________________ Give the body system. nervous The probe is pointing at the maxilla _________________ Give a function. Manipulate food Last pair (bailers) move water over gills http://www.flushing.k12.mi.us/srhigh/tippettl/biology/cray/index.html Which of these crayfish is a male? female male Image by Riedell/Vanderwal © 2005 Name these dark ovals Adductor muscles Give a body system muscular Image by Riedell/Vanderwal © 2005 Name this exit opening anus Image by Riedell/Vanderwal © 2005 Name the body system(s) that use this as an exit. Digestive only Name this section of the body abdomen TRUE or FALSE False Image by Riedell/Vanderwal © 2005 This is a tagma. Image by Riedell/Vanderwal © 2005 Name this piece of exoskelton that covers the main body in a crayfish carapace Name the polysaccharide that makes it “flexible” chitin Image by Riedell/Vanderwal © 2005 The teeth seen here inside the stomach are Gastric mill called the _______________ Image by Riedell/Vanderwal © 2005 #1 #2 Name #2 antenna Give a function. Sense touch & taste, Image by Riedell/Vanderwal © 2005 Name this small white spot. Cerebral ganglia Give a function Acts as the brain Name the body system nervous Image by Riedell/Vanderwal © 2005 Name these tail sections. uropods Which of these crayfish is a female? female male Image by Riedell/Vanderwal © 2005 Image by Riedell/Vanderwal © 2005 #4 Name the body region cephalothorax Image by Riedell/Vanderwal © 2005 #4 Which of these is a tagma? #4 or #5 #4- made by joining head + thorax #5 The pink arrow is pointing at the Digestive gland _________________ Give a function. Make bile Finish digestion Absorb nutrients http://www.flushing.k12.mi.us/srhigh/tippettl/biology/cray/index.html Image by Riedell/Vanderwal © 2005 Name this tail section telson USE your direction words to answer This crayfish is showing you its ventral _______________ surface. Image by Riedell/Vanderwal © 2005 USE your direction words to answer Image by Riedell/Vanderwal © 2005 This crayfish is showing you its dorsal _______________ surface. USE your direction words to answer Image by Riedell/Vanderwal © 2005 #15. The arrow is pointing to the anterior crayfish’s _______________ end. Image by Riedell/Vanderwal © 2005 This space that surrounds the organs coelom is called the ____________. Image by Riedell/Vanderwal © 2005 The piece that sticks out between the eyes is the ______________. rostrum http://www.flushing.k12.mi.us/srhigh/tippettl/biology/cray/index.html Ventral nerve cord This thin white line = ___________________ Give the body system nervous http://www.flushing.k12.mi.us/srhigh/tippettl/biology/cray/index.html Name this part gonad Give a body system reproductive The probe is pointing at the mandible _________________ Give a function. http://www.flushing.k12.mi.us/srhigh/tippettl/biology/cray/index.html Manipulate food touch taste http://www.flushing.k12.mi.us/srhigh/tippettl/biology/cray/index.html Cardiac stomach Yellow arrow = __________________ Pyloric stomach Pink arrow = ___________________ http://www.flushing.k12.mi.us/srhigh/tippettl/biology/cray/index.html Name these feathery appendages swimmerets Give a function Transfer sperm (males), carry eggs/embryos (females), create water currents over eggs Image by Riedell/Vanderwal © 2005 Name it heart Give the function Pump hemolymph (blood) The openings in the structure above are ostia called _____________ Give the body system. circulatory