Respiratory Muscles


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Respiratory Muscles

 

the skeletal muscles that increase and decrease the volume of the thorax during respiration. The main work of the respiratory muscles is done during inspiration, since expiration occurs passively, as a result of the pull of the thoracic walls and the elasticity of the lungs and intercostal muscles. (The internal intercostal muscles and the abdominal muscles participate in labored exhalation.) The diaphragm is the principal muscle used in inspiration, in which the external intercostal muscles also participate. An increased rate of inspiration is promoted by certain muscles of the neck and the superficial muscles of the chest. Also involved in labored respiration are certain muscles of the back and the shoulder girdle.

References in periodicals archive ?
However, in treating patients with respiratory failure due to atrophied respiratory muscles, caution must be used.
Respiratory muscles may be depressed, accompanied by an axonal sensorimotor polyneuropathy.
When respiratory muscles are affected, patients lose the ability to breathe without ventilatory support.
We decided to measure the actual work of the respiratory muscles during exercise, intending to learn whether wearing a nasal dilator reduced that work," says lead researcher Joseph A.
Respiratory care: Nemaline myopathy and congenital (X-linked) myotubular myopathy cause weakening of the respiratory muscles (those that control the lungs).
Sensation includes the stimuli, receptors (mechanical and chemical), and nerve pathways involved in the transmission of impulses to and from the lungs, respiratory muscles, chest wall, respiratory circulation, and brain.
Reid W, Dechman G: Considerations when testing and training the respiratory muscles.
It can result in serious cases in the weakening of respiratory muscles, leading to breathing problems and heart disease.
Cardiovascular fitness and muscle strength are components of overall performance that we are familiar with--but respiratory muscles have probably been taken for granted.
Lemon balm and eucalyptus, for example, are known to relax respiratory muscles.
In the patient with a compromised respiratory system, alveoli may not be adequately inflated due to weakened respiratory muscles, weakened respiratory drive, airway obstruction, injury to lung tissue, or underdeveloped lungs.