15. Digestive System & Nutrition Flashcards
Name the layer of the alimentary canal that keeps its outer surface slippery and moist
Serosa
What effect does secretin have on the pancreas?
Stimulates the pancreas to secrete fluid high in bicarbonate ion concentration
The chemical and mechanical breakdown of foods and the absorption of the resulting nutrients by cells is called:
Digestion
Name the secretion from the stomach that aids in the absorption of vitamin b12 in the small intestine:
Intrinsic factor
The ________ region of the stomach acts as a temporary storage area for ingested food.
Fundic
What is the distal segment of the small intestine called?
ileum
List the divisions of the small intestine in the correct order beginning at the stomach and ending at the large intestine:
duodenum, jejunum, ileum
Name the segment of the large intestine between the ascending and descending colon.
Transverse
Dental cavities destroy these parts of a tooth
dentin and enamel
What is the function of the small intestine?
Digestion and absorption
What is the inner most layer of the alimentary canal called?
Mucosa
What organ secretes cholecystokinin?
Small intestine
The only nutrients normally absorbed by the large intestine are
Water and salt (electrolytes)
Pancreatic secretions are
Alkaline
Which organ makes bile?
Liver
Enzymes from the pancreas that travel along the pancreatic duct always empty into the
duodenum
Name the digestive enzyme secreted by the stomach which is responsible for the initial digestion of proteins
Pepsin
What is the function of bile?
Emulsifies fats
Name the type of cells of the stomach that secrete digestive enzymes
Chief
Name the part of the alimentary canal where most of the absorption of the products of digestion occurs
Small intestine
Which of the following enzymes is present in secretions from the pancreas, stomach, as well as the mouth?
Amylase
What organ secretes gastrin?
Stomach
