FREE Certified Gastroenterology RN Trivia Question and Answers

Question 1

Which stage of digestion is not existent?

Accepted Answer

Expulsion

Answer

The main stages of digestion include ingestion (taking in food), propulsion (moving food through the digestive tract), mechanical and chemical digestion (breaking down food), absorption (nutrients entering the bloodstream), and defecation (elimination of undigested waste). 'Expulsion' is not a recognized distinct stage in the physiological process of digestion, although defecation involves expelling waste.

Question 2

Saliva is created by what?

Accepted Answer

The salivary glands

Answer

Saliva is produced and secreted by the salivary glands, which are exocrine glands located in and around the mouth. These glands, including the parotid, submandibular, and sublingual glands, produce saliva that aids in digestion, lubrication, and oral hygiene. The opening in the mouth is where saliva is released, not where it is created.

Question 3

What is the name of the semi-liquid that the stomach acid produced?

Accepted Answer

Chyme

Answer

After food is thoroughly mixed with gastric juices (stomach acid and enzymes) in the stomach, it is transformed into a semi-liquid, acidic paste called chyme. This chyme is then gradually released into the small intestine for further digestion and absorption. This process is essential for breaking down food into a form usable by the body.

Question 4

What are the names of stomach mucosa openings?

Accepted Answer

Gastric pits

Answer

The surface of the stomach mucosa is lined with millions of tiny indentations called gastric pits. These pits lead down into the gastric glands, which contain various cells that secrete gastric juice components like hydrochloric acid, pepsinogen, and mucus. These secretions are essential for chemical digestion in the stomach.

Question 5

What digestive enzymes are present in the mouth?

Accepted Answer

Amylase

Answer

Saliva, produced in the mouth, contains the enzyme salivary amylase (also known as ptyalin). This enzyme begins the chemical digestion of carbohydrates by breaking down complex starches into simpler sugars. This initial breakdown prepares food for further digestion in the stomach and small intestine.

Certified Gastroenterology RN Practice Test

Certified Gastroenterology RN Practice Test

FREE Certified Gastroenterology RN Trivia Question and Answers