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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

Cartilage is found in which of the following structures of the tracheobronchial tree?

1. Bronchioles

2. Respiratory bronchioles

3. Segmental bronchi

4. Terminal bronchioles

A. 1 only

B. 3 only

C. 2 and 3 only

D. 1 and 4 only

Summary Introduction

Introduction:

The respiratory system is one of the vital biological systems, which is segregated into the upper and lower respiratory systems. The cartilaginous layer is also found in this system, and is known to be the outermost sheet of the tracheobronchial tree that progressively reduces in size as the airways move into the lungs.

Explanation

Explanation for the correct answer:

Option (b) is given as 3 only. The cartilaginous airways comprise the trachea, main stem bronchi, segmental bronchi, lobar bronchi, and subsegmental bronchi. The 3rd generation of the bronchi branches-off the lobar bronchi in order to form the segmental bronchi. It is known that there are 10 segmental bronchi on the right and 8 on the left lung. Hence, option (b) is the correct answer.

Explanation for the incorrect answer:

Option (a) is given as 1 only...

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