intercostal muscles


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intercostal muscles

Voluntary muscles, situated between each pair of adjacent ribs, which, on contracting, raise the rib cage upwards and outwards so as to increase the volume of the chest and cause air to be forced in by atmospheric pressure.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

intercostal muscles

the muscles lying between the ribs of vertebrates that, with the ribs, form the walls of the thorax. Contraction of external intercostal muscles brings about rib movement upward and outward, thus expanding the thoracic cavity reducing the thoracic pressure and drawing air into the lungs. see BREATHING.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Intercostal nerve preservation could be performed by intracostal suture, or intercostal muscle flap techniques in order to decrease pain during thoracotomy.
Altogether, the present results do not seem to be caused by a systemic effect on either blood flow or arterial oxygenation, but rather a local mechanism in intercostal muscle leading to decreased local muscle deoxygenation triggering a respiratory metaboreflex.
Young children are unable to compensate effectively for a paralysed hemi-diaphragm because of their greater reliance on the diaphragm for ventilation in a more horizontally arranged ribcage with underdeveloped intercostal muscles, (3, 5) a relatively mobile mediastinum, (3) a more compliant chest wall owing to incomplete ossification, (5) and narrow, easily obstructed bronchi.
Sometimes the intercostal muscles (the muscles between the ribs) can be strained.
These showed that she had an invasive, inflammatory breast cancer that had also invaded her pectoral and intercostal muscles, her vertebrae, right axilla and left greater trochanter (femur) also causing pain walking.
Naqaash Tahir, before straining or tearing intercostal muscles, dismissed Mark Ramprakash as he, Heath Streak and Neil Carter performed admirably, Carter making the breakthrough by dismissing Scott Newman Martin Bicknell scored 58 before Surrey declared their second innings
As this awareness goes into the compressed side, the intercostal muscles begin to stretch making more room for the lungs and ribs to expand.
AIT sounds like cramp in your intercostal muscles - the ones between your ribs.
More smokers had FDG uptake localized to the intercostal muscles (52% of 69 FDG studies) than nonsmokers (8% of 37 studies).
Clinically, the infants present in the first 2 to 3 months of life with generalized hypotonia and impaired intercostal muscles without diaphragmatic involvement.
[11,12] PCA activity is also positively correlated with the activity of accessory inspiratory muscles, such as the infrahyoid and intercostal muscles. The cricothyroid muscle (CT) is also activated during inspiration, tensing the vocal folds.

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