Explanation Explanation for the correct answer: Option (b) is given as two only. The diaphragm is known to be the primary muscle for ventilation. It is a dome-shaped musculofibrous segregation, situated between the thoracic cavity and the abdominal cavity. Each hemidiaphragm begins from the lumbar vertebrae and the terminal branches of the phrenic nerves supply the primary motor innervation of each hemidiaphragm. Hence, option (b) is the correct answer. Explanation for the incorrect answers: Option (a) is given as 1 only...

MindTap for Des Jardins' Cardiopulmonary Anatomy & Physiology, 2 terms Printed Access Card

7th Edition

ISBN: 9781337794923

Author: Des Jardins, Terry

Publisher: Cengage Learning

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Question

Chapter 1, Problem 15RQ

Summary Introduction

Introduction:

The respiratory system is one of the vital biological systems, which is segregated into the upper and lower respiratory systems. The diaphragm is another vital organ which regulates the inhalation and exhalation processes. This organ makes space for more air to enter the lungs.

Expert Solution & Answer

Chapter 1 Solutions

MindTap for Des Jardins' Cardiopulmonary Anatomy & Physiology, 2 terms Printed Access Card

Ch. 1 - Which of the following lines the anterior...Ch. 1 - Which of the following form(s) the nasal septum?...Ch. 1 - Prob. 3RQ Ch. 1 - 4. The canals of Lambert are found in the A....Ch. 1 - 5. The pharyngotympanic (auditory) tubes are found...Ch. 1 - The inferior portion of the larynx is composed of...Ch. 1 - 7. Which of the following has the greatest...Ch. 1 - Prob. 8RQ Ch. 1 - 9. Ninety-five percent of the alveolar surface is...Ch. 1 - Which of the following is (are) released when the...

Ch. 1 - Prob. 11RQ Ch. 1 - 12. Pseudostratified ciliated columnar epithelium...Ch. 1 - 13. Which of the following is (are) accessory...Ch. 1 - 14. The horizontal fissure separates the A....Ch. 1 - Prob. 15RQ Ch. 1 - 16. The lung segment called the superior lingual...Ch. 1 - 17. Cartilage is found in which of the following...Ch. 1 - 18. The bronchial arteries nourish the...Ch. 1 - 19. Which of the following elevates the soft...Ch. 1 - 20. Which of the following are called the...

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The respiratory system is one of the vital biological systems, which is segregated into the upper and lower respiratory systems. The diaphragm is another vital organ which regulates the inhalation and exhalation processes. This organ makes space for more air to enter the lungs.

Solution Summary: The author concludes that the phrenic nerve is responsible for the motor innervation of each hemidiaphragm.

Concept explainers

Introduction: The respiratory system is one of the vital biological systems, which is segregated into the upper and lower respiratory systems. The diaphragm is another vital organ which regulates the inhalation and exhalation processes. This organ makes space for more air to enter the lungs.

Chapter 1 Solutions

Introduction:

The respiratory system is one of the vital biological systems, which is segregated into the upper and lower respiratory systems. The diaphragm is another vital organ which regulates the inhalation and exhalation processes. This organ makes space for more air to enter the lungs.