FREE PHYSIOLOGY AND STUDY GAMES ABOUT DIGESTIVE

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FREE PHYSIOLOGY AND STUDY GAMES ABOUT DIGESTIVE

SYSTEM EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -234 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: T/ Chemical produced by parietal cells required for intestinal absorption of vitamin B12

Answer:

Intrinsic factor

Question 2: Where do nucleic acids begin digesting?

Answer:

Small intestine

Question 3: What are bile salts derived from?

Answer:

Cholesterol

Question 4: What is the external anal sphincter consist of?

Answer:

Skeletal muscle

Question 5: Which sphincter lies between the stomach and the small intestine?

Answer:

Pyloric sphincter

Question 6: T/F Bile is an enzyme

Answer:

False

Question 7: Where does carbohydrate digestion occur?

Answer:

Mouth and small intestine

Question 8: Which type of cells do the sublingual glands have?

Answer:

Mostly mucous cells

Question 9: What are the stimuli for bile production and release?

Answer:

Cholecystokinin, bile salts

Question 10: Which type of cells do the submandibular glands have?

Answer:

Mostly serous cells, small number of mucous cells Question 11: T/ Transport of a substance across an epithelial lining into the bloodstream.

Answer:

Absorption

Question 12: What are the two types of acinar cells and where are they?

Answer:

Serous cells and mucous cells, Salivary glands

Question 13: T/ Innermost tissue layer of alimentary canal organs, lined with epithelium.

Answer:

Mucosa

Question 14: What occurs during the gastric phase?

Answer:

Partially digested proteins stimulate vagus nerve and ENS to stimulate G cells to produce gastrin which increases acid secretion. This activates pepsin, which catalyzes protein digestion.Question 15: T/ Small intestine segment that is the most active site of chemical digestion and absorption

Answer:

Jejunum Question 16: T/ Reflex during the intestinal phase caused by a declining pH and presence of lipids in the duodenum.

Answer:

Enterogastric reflex

Question 17: What does pepsin begin in the stomach?

Answer:

Protein digestion

Question 18: How many pairs of skeletal muscles surround the pharynx?

Answer:

3

Question 19: What is located at the base of gastric pits in the stomach?

Answer:

Gastric glands Question 20: T/ Smallest folds in the small intestine, found in plasma membrane of enterocytes, highly folded extensions that increase surface area for absorption.

Answer:

Microvilli

Question 21: Where are serous cells located and what do they secrete?

Answer:

Salivary glands, water-based fluid with enzymes

Question 22: What type of cells are acinar cells?

Answer:

Modified simple cuboidal cells.Question 23: T/ Hormone that works with histamine to stimulate acid secretion from parietal cells.

Answer:

Gastrin

Question 24: T/ Process of breaking down a substance into smaller subunits.

Answer:

Digestion

Question 25: Which anal sphincter is involuntary?

Answer:

Internal anal sphincter

Question 26: Where are mucous cells located and what do they secrete?

Answer:

Salivary glands, mucus Question 27: T/ Cells of the small intestine, produce multiple digestive enzymes, hormones, and mucus.

Answer:

Enterocytes

Question 28: What pancreatic enzymes help break up nucleic acids?

Answer:

Nucleases