Digestive Secretions

Question 1

What are the cells lining the stomach?

Answer 1

Mucous cells
Chief cells
Parietal cells

Question 2

Parotid gland secretes:

Answer 2

Salivary amylase (breakdown of carbs)

Question 3

Sublingual gland secretes:

Answer 3

Mucin (lubrication)

Question 4

Submandibular gland secretes:

Answer 4

Salivary amylase & mucin (both lubrication and breakdown of carbs)

Question 5

Mucous cells secrete:

Answer 5

Mucous (protects lining by coating it)

Question 6

Chief cells secrete:

Answer 6

Pepsinogen [inactive form of pepsin] (breakdown of protein by pepsin)

Question 7

Parietal cells secrete:

Answer 7

HCL (breaks down tough plant material, converts pepsinogen –> pepsin, and neutralizes harmful bacteria)

Question 8

Pancreas secretes:

Answer 8

• Lipase (fat digestion w/ the help of bile)
• Trypsinogen & Chymotrypsinogen [inactive forms] (activated to trypsin and chymotrypsin and breakdown protein)
• Pancreatic amylase (carb breakdown)
• Bicarbonate (neutralizes acid chyme)

Question 9

Liver secretes:

Answer 9

Bile (fat digestion - breaks fat into smaller pieces)

Question 10

Cells lining the small intestine secrete:

Answer 10

• Peptidase (final breakdown of proteins and amino acids)

- Multiple secretions (final breakdown of carbs to glucose)

Question 11

What is the mechanical action that occurs in the mouth?

Answer 11

Mastication (chewing)

Question 12

What is the mechanical action that occurs in the stomach?

Answer 12

Churning

Question 13

What is the mechanical action that occurs in the duodenum?

Answer 13

Segmentation

Question 14

What are the salivary glands?

Answer 14

Parotid
Sublingual
Submandibular