Example image of eyePlorer eyePlorer map for 'Scalenus anterior': Sternocleidomastoid muscle Cervical vertebrae First rib Subclavian groove Transverse processes Rib Neck Common carotid artery Internal thoracic artery Brachial plexus Muscles of respiration Ascending cervical artery Costocervical trunk List of subjects in Gray's Anatomy: IV. Myology Scalene muscles Thyrocervical trunk Right lymphatic duct Suprascapular artery External jugular vein Subclavian triangle Subclavian artery Vertebral artery