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Cardiopulmonary Anatomy & Physiolo...

7th Edition
Des Jardins + 1 other
ISBN: 9781337794909

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Chapter
Section
BuyFindarrow_forward

Cardiopulmonary Anatomy & Physiolo...

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

The inferior portion of the larynx is composed of the

A. thyroid cartilage.

B. hyoid bone.

C. glottis.

D. cricoid cartilage.

Summary Introduction

Introduction:

Larynx is commonly called 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 (d) is cricoid cartilage. It is a signet ring-like shaped cartilage which is found inferior to the thyroid cartilage and also makes up a large portion of the posterior wall of the larynx. The inferior most boundary of this cartilage is joined to the 1st c-shaped cartilage of the trachea. Hence, option (d) is the correct answer.

Explanation for the incorrect answer:

Option (a) is given as thyroid cartilage...

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