Digestive system Flashcards
(32 cards)
The four functions of the digestive system
ingestion, digestion, absorption, and elimination.
Complex proteins are digested to
amino acids;
complicated sugars are reduced to simple sugars
glucose
large fat molecules (triglycerides)
are broken down to simpler fatty acids
Cells then break down nutrients
in the presence of oxygen to release energy
fat molecules
are absorbed into lymphatic vessels
elimination
solid waste materials that cannot be absorbed into the bloodstream
tonsils
masses of lymphatic tissue located in depressions of the mucous membranes, lie on both sides of the oropharynx
mastication
chewing
deglutition
swallowing
buccal
surface faces the cheek,
labial
surface faces the lips
Three pairs of salivary glands
surround and empty into the oral cavity
exocrine glands produce
saliva
Saliva is released from
parotid gland [1], submandibular gland [2], and sublingual gland [
pharynx
throat
pharynx
It serves as a passageway both for air traveling from the nose (nasal cavity) to the windpipe (trachea
list of throat opening
pharynx
Larynx
trachea
esophagus
amyl/o
Enzyme
amylase
Enzyme
colon
large intestine consisting of the ascending, transverse, descending, and sigmoid segments.
liver
Large organ located in the RUQ of the abdomen. The liver secretes bile; stores sugar, iron, and vitamins; produces blood proteins; destroys worn-out red blood cells; and filters out toxins.
List three ways in which a patient can become jaundiced:
any liver disease (hepatopathy—such as cirrhosis, hepatoma, or hepatitis), so that bilirubin is not processed into bile and cannot be excreted in feces
b. obstruction of bile flow, so that bile and bilirubin are not excreted and accumulate in the bloodstream
c. excessive hemolysis leading to overproduction of bilirubin and high levels in the bloodstream
amylase and lipase tests
Tests for the levels of amylase and lipase enzymes in the blood.