V7 Which of the following statements about movement of food through the gut is FALSE?O a. The inner circular muscle and outer longitudinal muscle layers in the gastrointestinal tract propel food unidirectionally towards the anus.b.The pyloric sphincter controls exit of food out of the stomach.O c. The epiglottis and vocal chords prevent food entry into the trachea.d. The waves of muscle contraction that propel food through the gut are called peristalsis.O e. The correct order of food passage through the small intestine is duodenum, ileum then jejunum.

We know that The digestive system contributes to homeostasis by breakdown food into forms that can…

Answered: V7 | bartleby

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter16: The Body's System

Section: Chapter Questions

Problem 2ACQ: Figure 16.7 Which of the following statements about the digestive system is false? a. Chyme is a...

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Figure 16.7 Which of the following statements about the digestive system is false? a. Chyme is a mixture of food and digestive juices that is produced in the stomach. b. Food enters the large intestine before the small intestine. c. In the small intestine, chyme mixes with bile, which emulsifies fats. d. The stomach is separated from the small intestine by the pyloric sphincter.
Why is it more difficult to breathe when the stomach is full? A. Because the full stomach impedes the downward motion of the contracting diaphragm. B. Because the full stomach impedes the downward motion of the relaxing diaphragm. C. Because the full stomach prompts a decrease in gastric juice secretion. D. Because the full stomach prompts an increase in gastric juice secretion. E. Because the full stomach stimulates increased activity in the ventral respiratory group.
Which of the following occurs within the submucosa in most regions of the Gl tract: Select one: a. the myenteric (Auerbach s) plexus b. nerves and parasympathetic ganglia of the submucosal (Meissner s) plexus. C. several layers of smooth muscle O d. relatively few blood vessels.
It is occasionally necessary for a person to have their gallbladder surgically removed. How will such a person's digestive process be altered? A. Pepsinogen would not be converted into pepsin before entering the lumen of the stomach. B. The person would be unable to digest fats. C. Mucus would not protect the stomach lining. D. Water would not be extracted from forming feces. E. Bile would go directly from the liver to the duodenum.
Which of the following statements about contraction of intestinal smooth muscle is TRUE?A. It occurs automatically.B. It is increased by parasympathetic nerve stimulationC. It produces segmentationD. All of the above are TRUE
Most of the absorption of food molecules takes place in thea. stomach.b. liver.c. small intestine.d. large intestine.
Which of the following is true about segmentation in the small intestine?a. It is a type of peristalsis.b. It moves chyme only from the duodenum to the ileum.c. Its frequency is the same in each intestinal segment.d. It is unaffected by cephalic phase stimuli.e. It produces a slow migration of chyme to the large intestine.
The small intestine is specialized for absorption because it a. is the last section of the digestive tract and retains food the longest. b. has saclike extensions along its length that collect food. c. has no outlet so food remains within it for longer periods of time. d. has an extremely large surface area that allows extended exposure to food.
The release of CCK and bile is triggered when fat enters the Select one: a. small intestine Ob. esophagus stomach C. O d. d. mouth Oe. large intestine
Which of the following enzymes that helps to break proteins is more likely active in the small intestine a. pepsin chemotrypsin b OC d b. trypsin d. carboxypeptidase C. e. (b, c, d)
Why can a person not swallow food and talk at the same time?a. To swallow, the epiglottis must close off the trachea.b. The brain cannot control two activities at once.c. To speak, air must come through the larynx to form sounds.d. A swallowing reflex is only initiated when the mouth is closed.e. Both a and c are correct.
All of the following are layers of the vertebrate gastrointestinal tract excepta. the peristalsis.b. the submucosa.c. the mucosa.d. the muscularis

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