intercostal muscles


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intercostal muscles

the muscles between adjacent ribs. They are designated as external and internal and function as secondary ventilatory muscles.
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Intercostal muscles

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.

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.
References in periodicals archive ?
PET images were combined with CT images to visually correlate FDG uptake with the intercostal muscles.
For example, a shock's contraction of the intercostal muscles involved in the mechanics of breathing or a shock's causing anoxia in those muscle's can lead to systemic oxygen deprivation, additional strain on the heart and a corresponding reduction in its ability to withstand the full effects of an electric shock without going into cardiac arrest.
4 Where in the human/animal body do the intercostal muscles live?
The intercostal muscles are positioned between the ribs and act by pulling up and down on the ribs and sternum, increasing and decreasing the size of the chest cavity.
The negative pressure required for inspiration is generated through an increase in chest cavity volume by actions of the diaphragm and intercostal muscles.
Unfortunately for Warwickshire, Neil Smith damaged his intercostal muscles during a practice session last Monday which meant that we had to go into the Kent games without a spinner
11] The possible reasons why normal respirations continue during diaphragmatic cramp may be that the intercostal muscles are innervated separately from the diaphragm, and thus not involved.
The intercostal muscles assist the diaphragm by stabilizing and expanding the upper chest.
A YOU may have pulled one of the intercostal muscles, the muscles between the ribs.
As the individual breaths in the rib cage expands stretching the intercostal muscles between the ribs and resulting in increased discomfort.
Robbins said the types of surgical intrusions completed during the trials included separation of planar adhesions, pleurectomy with removal of entire lung or lobe, separation of interlobar sulci, dissection of muscles of thorax and intercostal muscles, welding of segmental arteries and veins (welding of the distal ends), atypical planar marginal resection of a lung, lymphodissection preserving continuity of the gland's coat and precision removal of tumors and tuberculomas in lungs.

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