Innermost intercostal muscle :-

Innermost intercostal muscle :-

Muscle details :-

a layer of intercostal muscles deep to the plane that contains the intercostal nerves and intercostal vessels and the internal intercostal muscles.

Origin :-

Infero-posterior border of each rib (above).

Insertion:-

Supero-posterior border of the rib (below).

Nerve:-

intercostal nerves.

Actions :-

Through adduction of upper ribs to the lower ribs the muscles narrow intercostal slits and diminish thorax volume, therefore the muscles represent expiratory muscles.

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About vastralphysiotherapyclinic

Physiotherapist , Samarpan Physiotherapy Clinic, Vastral, Nirant Cross Road, Ahmedabad

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