NU 110 exam 3 Questions and Correct Answers |
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What are the parts of the small intestine? Ans: 1. Duodenum
2. Jejunum
3. Ileum
What is the function of the Duodenum? Ans: It receives Chyme. It is
where your gallbladder dumps bile via bile ducts.
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What is the importance of the small intestine? Ans: Site of nutrient
absorption.
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What is the function of the Ileum Ans: It's an extension to make sure
whatever nutrients were not absorbed have somewhere to go.
What is the direction of the large intestine? Ans: Ascending colon,
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transverse colon, Desecending colon, sigmoid colon, Rectum. Anus.
Where does digestion start? Ans: starts psychologically before food
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enters the mouth
What is the enzyme that digests/breaks down glucose? Ans: Amylase
What is the mechanical part of chewing? What is CN for chewing? CN for
swallowing? Ans: -Mastication
-CN#5 Trigeminal= chewing
-CN#9 Glossopharyngeal= swallowing
What structure is involved in swallowing after mastication? Ans:
Esophagus
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What sphincter at the beginning of the stomach prevents us from having
heart burn(Dyspepsia)? Ans: -LES= lower esphageal sphincter or Cardiac
Sphincter.
When you swallow, what substance is released into the stomach to break
down food? Ans: Hydrochloric Acid (HCL acid)
What substance breaks down protein in the stomach? Ans: Pepsin
What is the mechanical part of the stomach? Ans: Churning
What is the name of the substance that the stomach makes from
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digestion? Ans: Chyme passes through the pyloric sphincter and dups
into the duodenum
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What are the 2 additional enzymes that the pancreas secretes? Ans: -
Lipase (fats)
-pepsidase (proteins) (sometimes called trypsin)
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Lipase calls on what to help break down large amounts of fat? Ans:
Gallbladder for the secretion of bile helps break down large amounts of
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fat.
What is the role of Villi? Where can they be found? Ans: -Absorbs small
nutrients molecules from the digestive tract
-it only absorbs, carbs and proteins once broken down into the smallest
possible units.
-found only in the small intestine mucosa
What organ makes bile? How? Ans: Liver and it uses broken down RBC's
and the chemicals secreted from lysis to it's storage unit (gallbladder)
What is the role of sodium bicarbonate? Ans: Neutralizes chyme from the
stomach, providing for optimal pancreatic function (produced in
pancreas)