Gastrointestinal System Physiology Quiz

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Questions and Answers

What is the daily average secretion of saliva?

1600-2000 ml
500-800 ml
800-1500 ml (correct)
200-500 ml

What is the pH range of saliva?

5.0-6.0
7.0-8.0
6.0-7.0 (correct)
4.0-5.0

What is the function of ptyalin in saliva?

Enzyme for digesting starches (correct)
Surface protective purposes
Protein secretion
Mucin for lubricating

Which gland secretes 70% of the total saliva?

<p>Submandibular glands (D)</p> Signup and view all the answers

Which part of the gastrointestinal system is responsible for mixing and storage?

<p>Stomach (D)</p> Signup and view all the answers

Flashcards

Daily saliva secretion (mL)

The average amount of saliva produced daily is between 800 and 1500 milliliters.

Saliva pH range

Saliva typically has a pH between 6.0 and 7.0.

Ptyalin function

Ptyalin, an enzyme in saliva, helps break down starches.

Major saliva gland

The submandibular gland produces about 70% of total saliva.

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Stomach's role

The stomach mixes and stores food.

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Study Notes

Saliva

The daily average secretion of saliva is approximately 1-2 liters.
The pH range of saliva is 6.8-7.4, which is slightly acidic to neutral.

Enzymes in Saliva

Ptyalin, an enzyme in saliva, breaks down starch into maltose.

Salivary Glands

The parotid gland secretes 70% of the total saliva.

Gastrointestinal System

The stomach is responsible for mixing and storage of food during digestion.

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Description

Test your knowledge of gastrointestinal system physiology with this quiz! Learn about the different parts of the digestive tube, including the mouth, esophagus, stomach, small intestine, colon, rectum, anus, liver, and pancreas. Explore concepts such as chewing, hydrolysis, pushing the bolus, mixing, storage, and absorption.