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