Explanation Thoracic cavity is often referred as chest cavity and is covered with ribs, vertebral column and the breastbone. It is the second largest hollow space present in our body. Diaphragm is responsible for separating it from abdominal cavity. It is formed of mediastinum and two pleural cavities. Lungs, esophagus, heart, trachea and thymus gland are the five major organs found in this cavity...

Laboratory Manual for Holes Human Anatomy & Physiology Fetal Pig Version

14th Edition

ISBN: 9781259295645

Author: Terry R. Martin

Publisher: McGraw-Hill Education

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Question

Chapter 46, Problem 1.6A

Summary Introduction

To fill:

when the diaphragm contracts the size of the thoracic cavity is affected.

Introduction:

Thin skeletal muscle that sits at the chest and separates it from the abdomen is called diaphragm. The contraction and relaxation of diaphragm pulls air into the lungs. Its main function is to separate thoracic cavity from abdomen and it also takes part in respiration. During inhalation n or exhalation, it contracts and relaxes accordingly affecting the volume of thoracic cavity.

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Chapter 46, Problem 1.5A

Chapter 46, Problem 1.7A

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Chapter 46 Solutions

Laboratory Manual for Holes Human Anatomy & Physiology Fetal Pig Version

Ch. 46 - Breathing can also be called...Ch. 46 - Prob. 1.2A Ch. 46 - Prob. 1.3A Ch. 46 - If the pressure inside the lungs decreases,...Ch. 46 - Prob. 1.5A Ch. 46 - Prob. 1.6A Ch. 46 - The ribs are raised by contraction of the...Ch. 46 - Only a thin film of lubricating serous fluid...Ch. 46 - A mixture of lipoproteins, called , acts to reduce...Ch. 46 - Prob. 1.10A

Ch. 46 - Muscles that help to force out more than the...Ch. 46 - Prob. 1.12A Ch. 46 - Prob. 2.1A

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Solution Summary: The author explains the function of the diaphragm, which separates the thoracic cavity from the abdomen and takes part in respiration.

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