Digestive Tract
The Stomach
Enzymes
Accessory Organs
Definitions
100
Begins the mechanical breakdown of food, and the digestion of carbohydrates.
What is the mouth?
100
Located at the junction of the esophagus and the stomach, it prevents food from moving backward into the esophagus.
What is the lower esophageal sphincter?
100
Secreted by the salivary glands, this enzyme breaks down starches into disaccharides.
What is salivary amylase?
100
Functions as both an endocrine and an exocrine gland. In digestion, it functions in the secretion of digestive enzymes for protein, fat, and carbohydrates, and the secretion of bicarbonate.
What is the pancreas?
100
A hormone in the stomach, it stimulates the secretion of HCl and Pepsin.
What is gastrin?
200
Also known as the colon, it functions in the absorption water and ions and produces faeces.
What is the large intestine?
200
Located in the junction of the stomach and the small intestine, it controls the passage of food into the intestine.
What is the pyloric sphincter?
200
Chymotrypsin, Trypsin, and Carbozypepsidase are three protein digesting enzymes secreted by the ............ into the duodenum.
What is the pancreas?
200
Functions in the creation of bile, conversion of nutrients for use or storage, sending of nutrients for use or storage, and detoxification of any potentially deadly substances that come through the digestive tract.
What is the liver?
200
The mixture of gastric juice and partly digested food.
What is chyme?
300
A muscular storage chamber that allows for gradual digestion. It also secretes gastric juices.
What is the stomach?
300
One of three types of secretory cells in the gastric pits, these cells secrete HCl.
What are parietal cells?
300
Located in the stomach, it begins the digestion of proteins.
What is pepsin?
300
Functions in the storage of bile.
What is the gall bladder?
300
It is synthesized from cholesterol in the liver and functions in breaking dietary fats down into micelles.
What is bile?
400
It consists of three sections, the duodenum, the jejunum, and the ileum. It functions as a site of absorption.
What is the small intestine?
400
One of three types of secretory cells in the gastric pits, these cells secrete pepsinogen, an inactive form of pepsin.
What are chief cells?
400
It functions in breaking down triglycerides of the micelles into fatty acids and glycerol.
What is pancreatic lipase?
400
Site of the entrance of the secretions of all the accessory organs.
What is the duodenum?
400
A hormone that stimulates the exocrine pancreas to release digestive enzymes and stimulates the contraction of the gall bladder.
What is cholecytsokinin (CCK)?
500
Comprised of skeletal muscle and smooth muscle, it transports the food toward the stomach via peristalsis.
What is the esophagus?
500
One of three types of secretory cells in the gastric pits, these cells protect the stomach from the low pH.
What are mucus-secreting cells?
500
Name the three carbohydrate digesting enzymes located in the mucosa of the duodenum.
What are maltase, lactase, and sucrase?
500
Functions in keeping food from entering the trachea.
What is the epiglottis?
500
The inactive form of an enzyme. Pepsinogen is an example of one.
What is a zymogen?