Variability of arising and course in posterior spinal arteries in their intracranial and cervical part in human fetuses.
D001158:Arteries / Q000033:anatomy & histology; D005333:Fetus / Q000033:anatomy & histology*; D006801:Humans; D013131:Spine / Q000098:blood supply*; D014711:Vertebral Artery / Q000033:anatomy & histology*