Explanation The roles of the given components of the oral cavity in forming a bolus are as follows: Teeth When the food is ingested, the food particles are chewed. This process of chewing (which is also called mastication) is done by the teeth that break the food particles into simpler and smaller units. This process is an example of mechanical digestion. Tongue The chewed (masticated) food is swallowed by the tongue. This swallowing action is also facilitated by saliva (a kind of digestive juice)...

4th Edition

ISBN: 9781265061173

Author: McKinley

Publisher: MCG CUSTOM

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Question

Chapter 26.2, Problem 11WDYL

Summary Introduction

To analyze:

The roles of tongue, teeth, and salivary glands in forming a bolus.

Introduction:

Bolus is a globular-shaped mass with a fluid texture. It is formed when the food is ingested in the oral cavity and undergoes partial digestion. The partially digested food which is termed bolus then passes down the esophagus (food pipe).

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Chapter 26.2, Problem 10WDYL

Chapter 26.2, Problem 12WDYL

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How is the bolus moved from the oral cavity into the stomach, as described in the three phases of swallowing?

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Chapter 26 Solutions

ANATOMY & PHYSIOLOGY 4/E PAC 1 SEMESTER

Ch. 26.1 - How is the gastrointestinal (GI) tract...Ch. 26.1 - Prob. 2WDYL Ch. 26.1 - What specific layer(s) must substances cross to...Ch. 26.1 - Prob. 4WDYL Ch. 26.1 - Prob. 5WDYL Ch. 26.1 - Prob. 6WDYL Ch. 26.1 - Prob. 7WDYL Ch. 26.1 - Prob. 8WDYL Ch. 26.1 - Prob. 9WDYL Ch. 26.2 - What structures are considered part of the upper...

Ch. 26.2 - Prob. 11WDYL Ch. 26.2 - Prob. 12WDYL Ch. 26.2 - How is the bolus moved from the oral cavity into...Ch. 26.2 - Prob. 14WDYL Ch. 26.2 - Prob. 15WDYL Ch. 26.3 - What organs are considered part of the lower GI...Ch. 26.3 - What are the three anatomic structures that...Ch. 26.3 - Prob. 18WDYL Ch. 26.3 - Diagram the ducts of the accessory digestive...Ch. 26.3 - Prob. 20WDYL Ch. 26.3 - Prob. 21WDYL Ch. 26.3 - Prob. 22WDYL Ch. 26.3 - Prob. 23WDYL Ch. 26.3 - Which substances are typically absorbed by the...Ch. 26.4 - What enzymes are required to completely break down...Ch. 26.4 - How are proteolytic enzymes activated in the...Ch. 26.4 - What is the function of bile salts in lipid...Ch. 26.4 - Prob. 28WDYL Ch. 26.4 - Prob. 29WDYL Ch. 26.4 - Prob. 30WDYL Ch. 26 - _____ 1. Which organ is located in the right upper...Ch. 26 - _____ 2. The _____ cells of the stomach are...Ch. 26 - _____ 3. Which of the following is an unregulated...Ch. 26 - _____ 4. Which organ (or part of an organ) is...Ch. 26 - _____ 5. Pancreatic juice contains a. HCO3 and...Ch. 26 - _____ 6. Bile is transported through the a....Ch. 26 - _____ 7. Digestion of proteins begins in the a....Ch. 26 - Prob. 8DYKB Ch. 26 - _____ 9. Digestive enzymes that chemically digest...Ch. 26 - _____ 10. Most of the absorption of our digested...Ch. 26 - The GI tract from the esophagus to the anal canal...Ch. 26 - Discuss the reason why the involuntary sequence of...Ch. 26 - Prob. 13DYKB Ch. 26 - Compare the structure of the circular folds,...Ch. 26 - Discuss why the tunica mucosa in the colon has a...Ch. 26 - Prob. 16DYKB Ch. 26 - What is the role of the gallbladder in digestion?Ch. 26 - Describe the different forms of mechanical...Ch. 26 - Prob. 19DYKB Ch. 26 - How are lipids absorbed in the GI tract?Ch. 26 - Prob. 1CAL Ch. 26 - Prob. 2CAL Ch. 26 - What component of the digestive tract can you not...Ch. 26 - The pancreatic ducts are blocked with a thick,...Ch. 26 - Prob. 5CAL Ch. 26 - Alexandra experienced vomiting and diarrhea and...Ch. 26 - A key event in the chemical digestion processes...Ch. 26 - Most cases of colorectal cancer occur in the most...

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