BIOS 256 UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS COMPLETE
STUDY GUIDE
●● What is the defecation reflex?
Answer: an involuntary response of the lower bowels promoting or even
inhibiting a bowel movement.
●● what is degluition?
Answer: swallowing
●● what is mastication?
Answer: chewing
●● what is peristalsis?
Answer: the involuntary constriction and relaxation of the muscles of the
intestine
●● what is segmentation?
Answer: ring like constrictions in several places along the intestines
●● what is the product of chief cells?
,Answer: pepsinogen
●● what is the product of enteroendocrine cells?
Answer: serotonin
●● what is the product of parietal cells?
Answer: hydrochloric acid (HCl)
●● What do chief cells secrete?
Answer: pepsinogen and gastric lipase
●● where are chief cells absent?
Answer: cardial and pyloric glands
●● Where are chief cells found?
Answer: gastric glands
●● What do enteroendocrine cells secrete?
Answer: hormones and paracrine messengers that regulate digestion
●● where are enteroendocrine cells found?
, Answer: all regions of the stomach, most abundant in gastric and pyloric
glands
●● What do parietal cells secrete?
Answer: HCl, intrinsic factor, ghrelin
●● where are parietal cells found?
Answer: mostly gastric glands and a few pyloric glands
●● what are the main organs of the digestive system?
Answer: mouth, pharynx, esophagus, stomach, small intestine, large
intestine
●● what are the accessory organs of the digestive system?
Answer: teeth, tongue, salivary glands, liver, gallbladder, and pancreas
●● what are the functions of the digestive system?
Answer: ingestion, digestion, absorption, compaction, defecation
●● what are the functions of the small intestine?
Answer: mix chyme with digestive juices, bring food in contact with
mucosa for absorption, complete digestion of macromolecules
AND CORRECT ANSWERS COMPLETE
STUDY GUIDE
●● What is the defecation reflex?
Answer: an involuntary response of the lower bowels promoting or even
inhibiting a bowel movement.
●● what is degluition?
Answer: swallowing
●● what is mastication?
Answer: chewing
●● what is peristalsis?
Answer: the involuntary constriction and relaxation of the muscles of the
intestine
●● what is segmentation?
Answer: ring like constrictions in several places along the intestines
●● what is the product of chief cells?
,Answer: pepsinogen
●● what is the product of enteroendocrine cells?
Answer: serotonin
●● what is the product of parietal cells?
Answer: hydrochloric acid (HCl)
●● What do chief cells secrete?
Answer: pepsinogen and gastric lipase
●● where are chief cells absent?
Answer: cardial and pyloric glands
●● Where are chief cells found?
Answer: gastric glands
●● What do enteroendocrine cells secrete?
Answer: hormones and paracrine messengers that regulate digestion
●● where are enteroendocrine cells found?
, Answer: all regions of the stomach, most abundant in gastric and pyloric
glands
●● What do parietal cells secrete?
Answer: HCl, intrinsic factor, ghrelin
●● where are parietal cells found?
Answer: mostly gastric glands and a few pyloric glands
●● what are the main organs of the digestive system?
Answer: mouth, pharynx, esophagus, stomach, small intestine, large
intestine
●● what are the accessory organs of the digestive system?
Answer: teeth, tongue, salivary glands, liver, gallbladder, and pancreas
●● what are the functions of the digestive system?
Answer: ingestion, digestion, absorption, compaction, defecation
●● what are the functions of the small intestine?
Answer: mix chyme with digestive juices, bring food in contact with
mucosa for absorption, complete digestion of macromolecules
