APPLIED RADIOLOGICAL ANATOMY

ANATOMY

GASTRO INTESTINAL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
who help the stomach in digestion?
A
saliva
B
CIH and pepsin
C
bile and exocrine pancreas
D
peptides and amino acids
Explanation: 

Detailed explanation-1: -Pepsin is a stomach enzyme that serves to digest proteins found in ingested food. Gastric chief cells secrete pepsin as an inactive zymogen called pepsinogen. Parietal cells within the stomach lining secrete hydrochloric acid that lowers the pH of the stomach. A low pH (1.5 to 2) activates pepsin.

Detailed explanation-2: -Evidence suggests that under normal physiological conditions, the mucus bicarbonate barrier is sufficient for protection of the gastric mucosa against acid and pepsin and is even more so for the duodenum.

Detailed explanation-3: -Types of Digestive Enzymes Amylase (made in the mouth and pancreas; breaks down complex carbohydrates) Lipase (made in the pancreas; breaks down fats) Protease (made in the pancreas; breaks down proteins)

Detailed explanation-4: -Pepsin converts proteins into peptides. Fats are broken down by lipases of gastric juice. Rennin is only found in gastric juice of infants, which helps in the breakdown of milk proteins.

There is 1 question to complete.