Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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10. The form of mechanical digestion in the small intestines is what?
a. churning
b. segmentation
c. haustral formation
d. peristalsis
11. All of these are functions of the liver except:
a. digests fats
b. removes toxins from blood
c. stores glucose in the form of glycogen
d. stores proteins in the form of hemoglobin
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Short answer questions:
What does the churning of food in the stomach and why is that necessary?
$
Contrast the movement of chyme in the small intestine with the bolus in the
esophagus? Why does that happen?
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Expert Solution

Step 1
Introduction :
Peristalsis : Food is moved along the digestive tract by a sequence of involuntary muscle contractions called peristalsis. Food is moved through the oesophagus, stomach, small and large intestines, and rectum by the wave-like contractions of the smooth muscles in the digestive tract. Peristalsis only helps to propel the food down the digestive tract. It doesn't help in the digestion.
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