19. Carbonic acid must be converted to to move into tubule cells to reduce blood
ID: 3483666 • Letter: 1
Question
19. Carbonic acid must be converted to to move into tubule cells to reduce blood pH c. Carbon dioxide and water a. b. Carboxyhemogobin Chapter 18: The Digestive System d. none of the above are correct 20. Wavelike muscular contraction of the gastrointestinal tract is termed a. Peristalsis b. Segmentation c. Deglutition d. Mastication 21. Functions of the digestive system include all of the following except a. Deglutition b. pH regulation c. Absorption d. Waste elimination 22. The lining of the intes tine provides a nonspecific physical and chemical barrier against microorganisms and their toxins a. True b. False 23. The uptake of digested food into the blood or lymph is a. Ingestion b. Deglutition c. Absorption d. Segmentation 24. Place the tunics (layers) of the GI tract wall in the correct order from superficial to deep (outside to inside) a. Submucosa, mucosa, serosa, muscularis b. Mucosa, muscularis, submucosa, serosa c. Serosa, submucosa, mucosa, muscularis d. Serosa, muscularis, submucosa, mucosa nn which of the following nerves would reduce GI secretionsExplanation / Answer
20. Wave like muscular contraction of the gastrointestinal tract is called peristalsis.
Hence option (a) is correct.
21. Waste elimination is the function of excretory system which involves kidneys.
Hence option (d) is correct.
22. The lining of the gastrointestinal tract provides the ist line defence against pathogens. It acts both physical and chemical barrier.
Hence option (a) is correct.
23. The uptake of digested food into blood is called absorption.
Hence option (c) is correct.
24. The GI tract consists of 4 layers. The outermost layer is called Serosa and the innermost layer is called mucosa. Serosa is followed by muscularis and muscularis is followed by submucosa.
Hence the option (d) is correct.
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