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Diaphragm Muscle: A Pump That Can Not Fail - PMC
In this review, we will delve into the detailed mechanistic underpinnings of the neural control of the DIAm and the symphonic coordination of its activation during breathing and other behaviors.
Respiratory Mechanics - PMC
What are respiratory mechanics? Respiratory mechanics refer to the expression of lung function through measures of pressure and flow. From these, a variety of derived indices can be determined, such as flow, pressure, volume, compliance, resistance, and work of breathing (WOB).
The expiratory and inspiratory process | Deranged Physiology
This chapter is most relevant to Section F3 (i) from the 2023 CICM Primary Syllabus, which expects the exam candidates to be able to "describe the inspiratory and expiratory process involving the chest wall, diaphragm, pleura, and lung parenchyma".
Mechanics of Ventilation - SEER Training
It is the process of air flowing into the lungs during inspiration (inhalation) and out of the lungs during expiration (exhalation). Air flows because of pressure differences between the atmosphere and the gases inside the lungs.
Mechanics of the respiratory muscles - PubMed
Expansion of the rib cage during inspiration is produced by the external intercostals in the dorsal portion of the rostral interspaces, the intercartilaginous portion of the internal intercostals (the so-called parasternal intercostals), and, in humans, the scalenes.
22.3 The Process of Breathing – Anatomy & Physiology 2e
Contraction and relaxation of the diaphragm and intercostals muscles (found between the ribs) cause most of the pressure changes that result in inspiration and expiration.
22.3 The Process of Breathing - Anatomy and Physiology 2e | OpenStax
Contraction and relaxation of the diaphragm and intercostals muscles (found between the ribs) cause most of the pressure changes that result in inspiration and expiration.
Pulmonary Mechanics and Respiration – Human Physiology
To help you better understand pressure changes within the lungs, the following video will explain atmospheric pressure, alveolar pressure, and pleural pressure in greater detail.
12.4: Mechanics of Breathing - Medicine LibreTexts
Inspiration, an active process, begins with the contraction of the diaphragm and external intercostal muscles. The diaphragm's descent and the rib cage's expansion increase thoracic volume, lowering intra-alveolar pressure and drawing air into the lungs.
17.3: How Breathing Works—Pressures, Volumes, and Airflow
During inspiration, the diaphragm contracts and moves downward while the external intercostal muscles lift the ribs up and outward. These actions expand the thoracic cavity and increase lung volume.
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