Ch.24 Questions Flashcards
What are the na,es of the salivary glands?
Parotid, submandibular, and sublingual
How does the mechanical process of chewing also aid in chemical digestion?
It involves physically breaking down food substances into smaller particles to undergo chemical digestion more efficiently
What are the three stages of deglutition?
The voluntary stage, the pharyngeal stage, and the esophageal
What do the mucous cells produce?
Mucus
What do the parietal cells produce?
Secretes hydrochloric acid and intrinsic factor
What do the chief cells produce?
Pepsinogen and gastric lipase?
What do the G cells produce?
Hormone gastrin
What does pepsin do in the stomach?
It digests proteins found in ingested food
What does hydrochloric acid do in the stomach?
It breaks down the food and the digestive enzymes split up the proteins
What other substances that helps in digestion is produced by the pancreas?
Produces sodium bicarbonate which buffers stomach acid
Where does the pancreas empty its secretions?
Into the duodenum
What does the liver produce?
Bile
What does bile do?
Important in the emulsification of fats
Is bile an enzyme?
No
What occurs in the process of emulsification?
The breakdown of large lipid globules into a suspension of small lipid globules
What does the gallbladder do?
Stores bile until it is needed
Why do patients who have had their gallbladder removed usually have to be careful about dietary fat intake?
To prevent any infection of illnesses
Where does the gallbladder empty is contents?
Into the duodenum
What is the function of the small intestine?
It functions as a majority of digestion and absorption occur
What are the three regions of the small intestine?
Duodenum, jejunum, and ileum
What are the 4 regions of the colon?
Ascending, transverse, descending, and sigmoid portions
What structure connects the small intestine to the colon?
Cecum
What do goblet cells produce?
Mucus
