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ATI: A&P (Gastrointestinal System) questions well answered to pass
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ATI: A&P (Gastrointestinal System) questions well answered to pass
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ATI: A&P (Gastrointestinal System)what is the gastrointestinal system also referred to? - correct answer ✔✔digestive system or the
alimentary canal
where is the gastrointestinal located - correct answer ✔✔in the abdominal cavity
what does the gastrointestinal specialized in? - correct answer ✔✔breaking down food for absorption
and distribution to the rest of the body
what do specialized regions and glands perform? - correct answer ✔✔both mechanical and chemical
(enzymatic) digestion
enzymatic digestion - correct answer ✔✔the break down of food by enzymes for absorption
what do blood vessels absorb in the gastrointestinal system? - correct answer ✔✔absorb nurtrients
Where does Gastrointestinal start and end? - correct answer ✔✔Starts at mouth
Ends at Anus
mouth - correct answer ✔✔The oral cavity at the entry to the alimentary canal
anus - correct answer ✔✔The opening of the rectum from which solid waste is expelled
what happens after food is ingested? - correct answer ✔✔mechanical digestion by chewing and grinding
in the mouth increases surface area by breaking it down to smaller pieces
what does mucus in saliva do? - correct answer ✔✔-lubricates the food
-food then is packaged into small parcels called "bolus" and swallowed (deglutition)
, what enzymes does saliva provide? - correct answer ✔✔amylase and lipase to initiate chemical digestion
of starch and lipids
saliva - correct answer ✔✔The clear liquid found in the mouth, also known as spit
Where does the bolus go? - correct answer ✔✔passes through the pharynx, the epiglottis closes the
tracheal opening and the food passes to the esophagus
bolus - correct answer ✔✔a mass of food that has been chewed and is ready to be swallowed
Peristalsis - correct answer ✔✔a series of muscle contractions that moves the bolus down the stomach
throw the gastric, which prevents reflux of the food back into the esophagus
where are chemical digestion of proteins initiated? - correct answer ✔✔the stomach, by the action of
enzyme PEPSIN which is activated by acid and autocatalysis
stomach - correct answer ✔✔The organ between the esophagus and small intestine in which the major
portion of digestion occurs
three main secretions of the stomach - correct answer ✔✔*Pepsinogen* (chief cells), *Mucus* (goblet
cells), *hydrochloric acid* (parietal cells)
chyme - correct answer ✔✔mixture of enzymes and partially-digested food (semifluid mass that moves
from the stomach to the small intestine--duodenum)
pyloric sphincter - correct answer ✔✔valve through which chyme passes from stomach to duodenum
small intestine - correct answer ✔✔the part of the GI tract between the stomach and large intestine that
includes the duodenum, jejunum, and ileum, where digestion and absorption of food occurs
duodenum - correct answer ✔✔first part of the small intestine
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