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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 is (are) accessory muscles of inspiration?

1. Trapezius muscles

2. Internal abdominisobliquus muscles

3. Scalene muscles

4. Transversusabdominis muscles

A. 1 only

B. 2 only

C. 1 and 3 only

D. 2 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 main function of this biological system is to regulate the inspiration and expiration processes, wherein the air moves into the lungs and out of the lungs, respectively.

Explanation

Explanation for the correct answer:

Option (c) is given as 1 and 3 only. The accessory muscles of the inhalation are those which are recruited to assist the diaphragm in producing a subatmospheric pressure within the lungs in order to enable enough inhalation. The primary muscles of this process include trapezius and scalenus muscles. Hence, option (c) is the correct answer.

Explanation for the incorrect answer:

Option (a) is given as 1 only. The trapezius muscles are not the only one responsible for the inhalation process...

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