The ______________ system is also referred to as the digestive system or the alimentary canal. - correct
answer ✔✔gastrointestinal
The gastrointestinal system extends from the ¹__________ to the ²__________ - correct answer ✔✔1.
Mouth
2. Anus
Blood vessels ¹_____________ the digested nutrients, and smooth muscle is under ²_______________
nervous system control. - correct answer ✔✔1. absorb
2. parasympathetic
Salvia also provides ¹_____________ and ²_____________ to initiate chemical digestion of
³_____________ and ⁴_____________. - correct answer ✔✔1. amylase
2. lipase
3. starch
4. lipids
Food is packaged into small parcels called? - correct answer ✔✔bolus
______________ moves the bolus down to the stomach through the gastric sphincter, which prevents
reflux of food back into the esophagus. - correct answer ✔✔Peristalsis
______________ digestion of protein is initiated in the stomach by the action of enzyme pepsin, which is
activated by acid and autocatalysis. - correct answer ✔✔Chemical
Chemical digestion of protein is initiated in the stomach by the action of enzyme _______________ -
correct answer ✔✔pepsin
, What is pepsin activated by? - correct answer ✔✔acid and autocatalysis
What are the three main secretions of the stomach? - correct answer ✔✔Pepsinogen, mucus,
hydrochloric acid
What type of cell is pepsinogen? - correct answer ✔✔chief
What type of cell is mucus? - correct answer ✔✔goblet
What type of cell is hydrochloric acid? - correct answer ✔✔parietal
The contents in the stomach is called? - correct answer ✔✔chime
Chyme passes through the __________ sphincter into the duodenum. - correct answer ✔✔pyloric
What is the first part of the stomach? - correct answer ✔✔duodenum
In the duodenum, chyme is neutralized by _________ in pancreatic secretions. - correct answer
✔✔bicarbonate
The duodenum receives alkaline bile juices from the ______ ____________, which helps neutralize acid
chyme. - correct answer ✔✔gall bladder
The duodenum produces a large number of "brush border" enzymes including ¹_________,
²__________, other ³_________, and ⁴___________. - correct answer ✔✔1. proteases
2. lactase
3. disaccharidases
4. bicarbonate
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