Health exams for: #AGEGROUP#
The following exams, tests, and procedures are recommended for #AGEGROUPLOWER#.#FEMALETEXT#
Select a link from the list below to learn how and why each test is performed, as well how to prepare for it.
The following exams, tests, and procedures are recommended for #AGEGROUPLOWER#.#FEMALETEXT#
Select a link from the list below to learn how and why each test is performed, as well how to prepare for it.
The diaphragm, located below the lungs, is the major muscle of respiration. It is a large, dome-shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs. Upon exhalation, the diaphragm relaxes and returns to its domelike shape, and air is forced out of the lungs.
Review Date: 5/3/2023
Reviewed By: Denis Hadjiliadis, MD, MHS, Paul F. Harron Jr. Professor of Medicine, Pulmonary, Allergy, and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.