Digestive system pharynx

Digestive system of an ectodermal pharynx and mesenteron without a proctodaeum or entirely without a... 

Segmented worms have much more advanced digestive systems than flatworms do. A flatworm has one opening, a mouth, for food and wastes. A segmented worm has two openings, a mouth at one end and an anus at the other. The mouth opens to an esophagus that leads to a muscular pharynx. 

No statistically significant increase in SMR was obtained in the Sinks et al. (1992) analysis tor the following cancer sites buccal cavity-pharynx, digestive organs, liver-biliary passages-gallbladder, pancreas, rectum, respiratory system, kidney, lymphatic and hematopoietic tissue, and brain and nervous system. 

The gastrointestinal (GI) system consists of the alimentary canal and the digestive tract that begins with the oral cavity and extends to the anus. The major stmctures of the GI system are the oral cavity (mouth, tongue, and pharynx)... 

Pharynx Part of the digestive and respiratory systems situated behind the nose and mouth. 

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