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maneuvers food for chewing/ shapes mass/ forces food back for swallowing functions of the tongue lingual glands secrete slaivary lipase crown/ root/ neck three major regions of teeth enamel hardest substance in the body dentin calcified CT in teeth cementum thin layer of bone-like material that surrounds a tooth periodontal ligament a tooth is held tight in its socket by this dentition array or development of teeth primary- 20 permanent- 32 list the two different sets of teeth and number of teeth in each set incisors teeth that are chisel shaped and bite off large pieces of food cuspids (canines) teeth that are cone shaped, and they grasp and tear food bicuspids and molars teeth that are specialized for grinding food particles crown portion of tooth that projects beyond the gum deglutition another term used for swallowing chemical/ mechanical two types of digestion in the mouth bolus mixture of food and saliva pharynx funnel-shaped tube that extends from the internal nares to the esophagus posteriorly and the larynx anteriorly secretes mucous/ transport food functions of the esophagus upper esophageal sphincter that regulates movement into esophagus lower esophageal spincter that regulates movemnt into the stomach adventitia has no serosa - attaches to surroundings mouth/ pharynx/ esophagus swallowing involves these organs voluntary/ pharyngeal/ esophageal 3 stages of swallowing peristalsis act of pushing bolus forward circular fibers behind bolus longitudinal fibers in front of bolus shorten the distance of travel stomach j-shaped muscular organ that receives and mixes food with digestive juices cardiac/ fundic/ body/ pyloric and pyloric canal parts of the stomach cardiac part of the stomach near the esophageal sphincter fundic part of the stomach thats a temporary storage area body main portion of the stomach pyloric ending portion of the stomach next to SI pyloric sphincter controls release of food from the stomach into the small intestine chyme the thin liquid that is propelled through the stomach is called lingual lipase digest triglycerides into fatty acids and diglycerides kills microbes/ denatures proteins functions of parietal cells chief cells secrete pepsin as inactive pepsinogen parasympathetic impulses/ gastrin enhances gastric secretions parietal - HCl/ chief - pepsinogen list the two different secretory cells of the stomach and their secretions head/ body/ tail parts of the pancreas acini/ islets of langerhans 2 types of cells in the pancreas islets of langerhans region of pancreas that secretes hormones acini region of pancreas that secretes pancreatic juice starch/ proteins/ fats/ nucleic acids pancreatic juice contains enzymes that digest these sodium bicarbonate substance in pancreatic juice which converts acid stomach contents to turn turn basic pancreatic juice mixture of fluid and digestive enzymes amylase - starch/ trypsin - proteins/ lipase - fats List the three different pancreatic enzymes and what they digest gastrin hormone that regulates gastric secretions mucosa protection against wear and tear