1 Digestive System - Oral cavity: Lips and Tongue. - Digestive tract: Esophagus, stomach, small intestine, large intestine, rectum, appendex. - Accessory glands of digestive system: salivar y glands, pancreas, and liver. Tongue: is a muscular organ, co vered by St. Sq. Ep. resting on basement membran e; and lamina propria (binds epithelium to underlying muscle) that contains serous glands . Tongue papillae ( 4 types) - Foliform (leaf-like); along side of tongue; has taste buds on posterior face. - Filiform: short bristles; covered by keratinized epi - Fungiform: red, globular; thin, non-keratinized epi - Circumvallate : row immediately anterior to sulcus terminals; contain most of taste buds and serous glands (von Ebn ers glands). Tongue papillae
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