crop The organ that stores food until it is ready to be digested pharynx A muscular organ that pushes food into the esophagus gizzard The organ that grinds food postomium The fleshy, upper lip of an earthworm aortic arches The "hearts" of an earthworm septum Tissue separating each segment of an earthworm anus Last structure on an earthworm's digestive system setae Bristles on an earthworm used for traction seminal receptacle Stores sperm received from another earthworm hermaphrodite Having both male and female reproductive organs annelida Phylum of earthworms dorsal The top or back side, darker in coloration ventral The bottom or stomach side, lighter coloration anterior The front or head end of an animal posterior The back or rear end of an animal typholosole Fold in worm's intestine = increases surface area alimentary canal Path food takes through the digestive system nephridia Tubes that move liquid wastes from an earthworm coelom Body cavity where internal organs are located cuticle Thin mucus producing membrane that covers worm ganglia The brain of the earthworm nerve cord Cord that connects the brain to the body clitellum Smooth band on the outside surface of earthworm ovary Produces female sex cells, or eggs testes Produces male sex cells, or sperm septa Individual chambers of a worm's body