Digestive system Flashcards
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 [