has muscle insertion has muscle insertion Homo sapiens longissimus muscle longissimus cervicis muscle http://upload.wikimedia.org/wikipedia/commons/1/1f/Longissimus.png ; nerve supply, dorsal primary rami of lower cervical and upper thoracic spinal nerves MA:0002337 NCIT:C53167 longissimus cervicis UMLS:C0224308 FMA:22711 UBERON:0001402 musculus longissimus cervicis EMAPA:37651 SCTID:244860008 Wikipedia:Longissimus#Longissimus_cervicis BTO:0001650 A muscle with origin in transverse processes of upper thoracic vertebrae, and insertion in transverse processes of middle and upper cervical vertebrae that extends cervical vertebrae. transverse process of cervical vertebra