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Cardiopulmonary Anatomy & Physiolo...

7th Edition
Des Jardins + 1 other
ISBN: 9781337794909

Solutions

Chapter
Section
BuyFindarrow_forward

Cardiopulmonary Anatomy & Physiolo...

7th Edition
Des Jardins + 1 other
ISBN: 9781337794909
Textbook Problem

Which of the following prevents the aspiration of foods and liquids?

A. Epiglottis

B. Cricoid cartilage

C. Arytenoid cartilages

D. Thyroid cartilages

Summary Introduction

Introduction:

The larynx is commonly called the voice box. It is found between the floor of the tongue and the upper segment of the trachea. This is commonly illustrated as the vestibule opening into the trachea from the pharynx and serves 3 major functions, namely, it works as a pathway of air, protects against the aspiration of the liquids and solids, and produces speech.

Explanation

Explanation for the correct answer:

Option (a) is states that epiglottis is known to be a broad and spoon-shaped fibrocartilaginous structure which prevents the aspiration of the foods and liquids by protecting the opening of the larynx at the time of swallowing. The epiglottis, as well as the floor of the tongue, are joined by the folds of the mucous membrane that makes a small gap. Hence, option (a) is the correct answer.

Explanation for the incorrect answer:

Option (b) is cricoid cartilage. This is a signet ring which is found inferior to the thyroid cartilage and makes up a large portion of the posterior wall of the larynx...

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