carotid-vertebral artery anastomoses

• trigeminal a. (most common variant: 0.1-0.2%)
• otic a.
• hypoglossal a.
• proatlantal intersegmental a.

• ** posterior communicating a. (PCA)
  • -- normal anastomosis of carotid to BASILAR artery)

© 2002, C.E. Kahn, Jr.
2002-04-18