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Hazel Munoz

SCI221-05 Physiology Set 2: Week 13 Digestion and Absorption

QuestionAnswer
Which hormones eject bile from the gallbladder? CCK & secretin
Fats and other nutrients in the dueodenum stimulate the intestinal mucosa to release what hormone? Gastric inhibitory peptide
Peristalsis is regulated in part by the intrinsic stretch reflexes, which is thought to be stimulated by what hormone? CCK
Pepsinogen is converted to pepsin by hydrochloric acid, which is produced by the ______ of the gastric glands. parietal cells
Which of the following is not part of the deglutition process? Oral, Laryngeal, Pharyngeal, Esophageal laryngeal
Since fats are insoluable in water, they must be _____. emulsified
Saliva contains what enzyme? Amylase
The wave-like ripple of the muscle layer of the GI tract is called ______. peristalsis
Expelling feces is called what? Defecation
________ the passage of substance through the intestinal mucosa into the blood or lymph. Absorption
What percentage of blood flow comes from the hepatic portal system? 80%
The final step in lipid transport by the intestines is the formation of ______. chylomicrons
Stimulation of gastric juice secretion occurs in all of the following phases except the ________ phase. Digestive, Cephalic, Gastric, Intestinal Digestive
CCK is an intestinal hormone that: causes the pancreas to increase secretion of exocrine high in enzymatic content, opposes the influence of gastrin on gastric parietal cells, and stimulates contraction of the gallbladder so that bile can pass into the duodenum
During which stage of swallowing is there a risk of food entering respiratory pathways? Oropharyngeal
Chemical digestion requires the secretion of ____ into the lumen of the GI tract. digestive enzymes and bile
The chemical process in which a compound unites with water and then splpits into simpler compounds is called _______. hydrolysis
Created by: hazel_m
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