Crayfish Dissection
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20 terms
Terms | Definitions |
|---|---|
 contain neurons for sensing touch and taste | antenna |
| contain neurons for sensing to allow for maintaining balance | anntenule |
| grabs food that is brought to the mouth | mandible |
| for steering during swimming | uropod |
| for obtaining food and for protection | cheliped |
| walking | walking leg |
| swimming, in males these transport sperm to the female, in females fertilized eggs may be attached to the swimmerets | swimmeret |
| for swimming | telson |
| releases digestive system waste | anus |
| contains teeth for mechanical digestion | stomach |
| chemical digestion and absorption of nutrients | intestine |
| produces digestive enzymes for chemical digestion | digestive gland |
| filters blood to remove metabolic wastes | green gland |
| pumps blood | heart |
| site of gas exchange; oxygen enters blood from water and carbon dioxide enters water from blood | gills |
| controls body by sending and receiving messages | brain |
| transmits signals between brain and body | ventral nerve cord |
| produce gametes | gonads |
| protects the gills | carapace |
| a body region | abdomen |
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