About a very rare variation of the course and width of the vertebral arteries and the hypoglossal nerve.
Described are: 1. A very thin intracisternal part of the vertebral artery (0.9 mm). 2. A very rare course of the vertebral artery (dorsal to the hypoglossal nerve). 3. Rare anastomoses between the vertebral artery and the PICA. 4. A rare upwards coiling of the PICA and 5. The origin and prevertebral course of the vertebral arteries.
Lang
J
J
Department of Anatomy, University of Würzburg, Federal Republic of Germany.
D000368:Aged; D002343:Carotid Artery, Internal / Q000002:abnormalities / Q000473:pathology; D003388:Cranial Fossa, Posterior; D006801:Humans; D007002:Hypoglossal Nerve / Q000002:abnormalities* / Q000473:pathology; D008297:Male; D014711:Vertebral Artery / Q000002:abnormalities* / Q000473:pathology