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A & P

ch. 9 GI

What is the inner most portion of the GI system the mucosa
What lies directly below the mucosa the submucosa
What is the name of the muscle layer adventitia
What is the name of the outer lining of the bowel the serosa
progressive contractions that propel food throught the gi system is a process known as peristalsis
Chewing is sometimes referred to as mechanical digestion
Food is digested by enzymes in the stomach and small bowel in a process known as chemical digestion
What region of the gi system serves as the main region for food absorbtion the small intestine
The chewing of food by the teeth is known as mastication
The tongue uses touch, temperature, and taste receptors to provide what sensory analysis
What is the primary enzyme in saliva salivary amylase
The esophagus passes through an opening in the diaphram known as the esophageal hiatus
Food that is churned and mixed with digestive juices forms a semiliquid mass called chyme
The thick folds of the stomach wall are called rugae
the mucosa includes many what gastric pits
What cells produce hydrochloric acid for food digestion perietal cells
what cells produce pepsinogen Chief cells
Pepsinogen is inactive untill it is exposed to hydrochloric acid,at which time it is converted to it's activated form known as pepsin
What enzyme breaks down proteins pepsin
What is the longest part of the digestive tract the small intestine
the small intestine contains three parts. what are they the duodenum, jejunum, and ileum
What enzyme breaks down sugars disaccharidases
what enzyme breaks down proteins peptidases
The jejunum and ileum are the primary sites for what absorbtion of nutrients
what valve prevents backflow of intestinal contents ileocecal
What do you call the recesses that give the colon that puckered appearence haustra
what organ acts as a reservoir for bile the gallbladder
What organ is the largest internal organ of the body the liver
what are a few of the livers functions the storing of glucose, protein synthesis, and filtering of wastes from the blood
what organ is responsible for helping to fight infection and remove red blood cells from circulation the spleen
what makes insulin,glucagons, and digestive enzymes the pancreas
name 3 pancreatic enzymes that digest protiens trypsin,chymotrypsin,carboxypeptidase
what enzymes break down fat lipases
Digestive organs are surrounded by what the peritoneum
The perietal peritoneum surrounds what the abdominal cavity
the visceral peritoneum surrounds what the organs.
Created by: klindley



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