Set | Verified 100% Correct
what is digestion? - breakdown of food into nutrients
what is absorption? - transportation of digested nutrients
what is the function of the oral cavity? - mechanical processing, moistening, mixing with
salivary secretions
what is the function of the pharynx? - muscular propulsion of materials into the
esophagus
what is the function of the esophagus? - transport of materials into the stomach
what is the function of the stomach? - chemical breakdown of materials by acids and
enzymes
what is the function of the small intestine? - enzymatic digestion and absorption of water
what is the function of the large intestine? - dehydration and compaction of indigestible
materials in preparation for elimination
what are the major organs of the digestive tract? - oral cavity, pharynx, esophagus,
stomach, small intestine, large intestine
what is the function of the teeth? - mastication
what is the function of the tongue? - sensory analysis
what is the function of the salivary glands? - secretion of lubricating fluids containing
enzymes that break down carbohydrates
what is the function of the liver? - secretion of bile
what is the function of the gall bladder? - stores bile
what is the function of the pancreas? - Secretes insulin and glucagon hormones and
makes pancreatic juices
what are the accessory organs of the digestive system? - teeth, tongue, salivary glands,
liver, gallbladder, pancreas
, what are the four major layers of the digestive tract? - mucosa, submucosa, muscularis
externa, serosa
which enzyme breaks down carbohydrates? - salivary amylase
what are the regions of the pharynx? - nasopharynx, oropharynx, laryngopharynx
where must food pass through to enter the stomach? - lower esophageal sphincter
what is peristalsis? - wave-like muscle contractions
what is the function of peristalsis? - move a bolus along the digestive tract
what causes GERD? - occurs when the LES is weak or under too much pressure
heartburn
what causes achalasia? - when the LES is too strong and does not open normally
difficulty swallowing, vomiting, choking
what is intrinsic factor? - glycoprotein required for absorption of vitamin B12 in small
intestine
what is the function of the pyloric sphincter? - regulates the release of chyme into the
duodenum
what is the function of rugae? - mucosal folds observed when the stomach is empty
allows stomach to expand
what are G cells? - secrete gastrin, a peptide hormone that increases HCl secretion and
gastric motility
what are parietal cells? - secrete HCl and intrinsic factor
what are chief cells? - secrete pepsinogen, turns into pepsin and breaks down proteins
what is emulsification? - the breaking up of fat molecules
the right and left hepatic ducts form which duct? - common hepatic duct
what forms the common bile duct? - common hepatic duct and cystic duct
what forms the portal triad? - portal vein, hepatic artery, bile duct
what is the order of the regions of the small intestine? - duodenum, jejunum, ileum