Digestive System Flashcards
What are the three main functions of the digestive system?
Digestion, absorption, and Elimination
The inner most layer of the serous membrane in contact with abdominal organs
Visceral peritoneum
The outer layer of the serous membrane lining the adominopelvic cavity
Parietal peritoneum
The subdivision of the peritoneum that contains fat and hangs over the front of the intestines
Greater omentum
The subdivision of the peritoneum extending between the stomach and liver
Lesser omentum
The fan shaped portion of the peritoneum
Mesentery
The subdivision of the peritoneum that extends from the colon to the posterior abdominal wall
Mesocolon
The digestive tract layer in contact with the intestinal continents
Mucosa
Visceral peritoneum attached to the surface of a digestive organ
Serosa
The layer of connective tissue beneath the mucous membrane in the wall of the digestive tract
Submuscosa
Rhythmic contractions of the circular muscle layer that Mixes food with digestive juices
Segmentation
Alternating waves of contraction and relaxation that pushes food along the G.I tract
Peristalsis
Voluntary process of taking food or drink into the body through the mouth
Ingestion
Moves food back-and-forth to mix it in the small and large intestines
Segmentation
When large food molecules are broken down into the building blocks by enzymes
Chemical digestion
When nutrients travel from the G.I. tract into the bloodstream in the small intestine
Absorption
The elimination of solid waste from the body is called
Defecation
In the mouth, mechanical digestion is accomplished by
Teeth and tongue
Salivary glands produce enzymes that begin
Chemical digestion
The hard palate is _____
Anterior to the soft palate
In mechanical digestion, food is physically broken down into smaller pieces by the teeth during chewing
Mastification
3 pairs of salivary glands
Parotid, Submandibular and Sublingual
The part of the oral cavity roof that extends to form the uvula
Soft palate
The act of swallowing
Deglutation
