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