scalenus posterior (muscle)
sca·le·nus pos·te·ri·or (mus·cle)
[TA]lateral muscle of inferior half of neck; origin, posterior tubercles of transverse processes of fourth to sixth cervical vertebrae; insertion, lateral surface of second rib; action, elevates second rib; nerve supply, cervical and brachial plexuses.
Synonym(s): musculus scalenus posterior [TA], posterior scalene muscle ☆ , musculus scalenus posticus