Human Physiology wiz needed 96. A fluid present in the small intestine during di

Question

Human Physiology wiz needed

96. A fluid present in the small intestine during digestion which contains c agents, and phospholipids is: a. pancreatic juice. b. bile c. intestinal juice. d. gastric juice e. saliva creamy paste called: mach is repeatedly squeezed and mixed with gastric juice, it is converted into a. a bolus b. chyme c. bile. d, feces e. saliva 98. Digestion refers to the A) progressive dehydration of indigestible residue. B) input of food into the digestive tract C) release of substances into the lumen of the gut. D) absorption of nutrients in the gut. breakdown of food into particles small enough to cross epithelial cells. 99. Which of the following is an accessory organ of digestion? A) stomach B) pancreas C) spleen D) colon E) esophagus 100. Which layer of the G.I. tract absorbs digested nutrients? a. mucosa b. submucosa c. serosa d. muscularis e. adventitia 101. Which of the following best describes the function of the esophagus? a. stores food until it can be digested b. transports food to the stomach c. secretes pepsinogen d. absorbs monosaccharides and amino acids e. none of the above

Explanation / Answer

1) A fluid secreted into the small intestine during digestion that contains cholesterol, emulsification agents, and phospholipids is:

ANSWER IS: b. Bile

EXPLANATION:

Bile is a fluid secreted into the small intestine during digestion that contains cholesterol, emulsifying agents which are bile salts and acids, phospholipids, bile pigments , electrolytic chemicals and water

2) ANSWER IS: chyme

EXPLANATION:

Chyme is pulpy acidic fluid which passes from the stomach to the small intestine and consist of gastric juices and also partly digested food.

3) ANSWER IS: E) breakdown of food into particles small enough to cross epithelial cells

EXPLANATION:

Digestion is the process of mechanical break down of large food chunks into smaller pieces without involvement of hydrolysis

4) ANSWER IS: pancreas

EXPLANATION:

Accesssory organs helps with digestion but is not part of the digestive tract. For example :tongue, salivary glands, pancreas, liver, and gallbladder.

5) ANSWER IS: mucosa

EXPLANATION:

Mucosa layer of the G1 tract labsorbs digested nutrients

Absorptive mucosa contains 2 structures: crypts and villi, that are responsible for absorbing digested nutrients. They are found along the entirety of the small intestine.

6) ANSWER IS: b transports food to the stomach

EXPLANATION:

Esophagus carries food from the mouth to the stomach.

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