Levatores costarum muscles :-
Muscle details :-
twelve in number on either side, are small tendinous and fleshy bundles, which arise from the ends of the transverse processes of the seventh cervical and upper eleven thoracic vertebrae .
Transverse processes of C7 to T11 vertebrae.
Superior surfaces of the ribs immediately inferior to the preceding vertebrae.
dorsal rami C8-T11 (Intercostal nerves).
Assists in elevation of the thoracic rib cage .