Activities of Digestion
Activity that involves getting food into the body - includes mouth, teeth, lips and tongue.
What is ingestion?
The 4 layers of the GI tract.
What are the mucosa, submucosa, muscularis externa, and serosa?
A storage tank for bile.
What is the gallbladder?
Another name for the GI or digestive tract.
What is the alimentary canal?
GERD stand for this.
What is gastroespophageal reflux disease?
Expulsion of food that was not absorbed
What is defecation?
Part of the digestive system that is also part of the respiratory system
What is the pharynx?
Hangs off the lowest part of the cecum and contains lymphocytes to help protect the body from infectious organisms.
What is the appendix?
The folds of the inside wall of the stomach that allows the stomachs volume to increase.
What are rugae?
Stomach flu -usually lasts 24 - 48 hours.
What is gastroenteritis?
Enzymes break down large food molecules to smaller ones.
What is chemical breakdown?
A mixture of food and acidic gastric juice that is found in the stomach.
What is chyme?
Produces digestive enzymes and also regulates blood sugar levels.
What is the pancreas?
Smooth muscle that relaxes to allow food to pass from the stomach to the small intestine.
What is the pyloric sphincter?
Solid crystals that form from substances in bile.
What are gallstones?
Reduces food to smaller pieces and increases surface area. Includes chewing and churning in the stomach.
What is mechanical breakdown?
First part of the small intestine where secretions from the liver, gallbladder and pancreas enter.
What is the duodenum?
Organ that has an unusual blood supply AND produces about 1 liter of bile per day
What is the liver?
The fingerlike projections found in the small intestine.
What are villi?
A group of diseases characterized by inflammation of the liver. May be caused by alcohol or drug abuse, needle stick, etc
What is hepatitis?
Symmetrical contraction of muscles that moves food along the GI tract.
What is peristalsis?
The parts of the large intestine.
What is the cecum, ascending colon, transverse colon, descending colon, and sigmoid colon?
Steatorrhea
What is the presences of excess fat in feces?
The movement of small food molecules from the small intestine into the blood.
What is absorption?
Inflammation of this organ occurs when the enzymes become active while still in the organ and begins to break down its own tissues.
What is pancreatitis?