Iliocostalis Thoracis
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Description[edit | edit source]
Origin[edit | edit source]
It is originated from the superior aspect of the angle of the lower six ribs( 6-12 ribs). It is medial to iliocostalis lumborum's insertion.[1]
Insertion[edit | edit source]
It is inserted on the angles of upper six ribs(1-6 ribs) and the transverse process of C7 vertebra.[1]
Nerve[edit | edit source]
It is innervated by the lateral branches of the posterior primary divisions (dorsal rami) of the thoracic spinal nerves.[1]
Artery[edit | edit source]
Function[edit | edit source]
The muscle extends and laterally flexes the Thoracic spine.[1]
