| PCA | 1) Passive Cutaneous Araphylaxis 2) Posterior Cerebral Artery |
|---|---|
| P-COM | Posterior COMmunicating artery |
| PICA | Posterior Inferior Cerebellar Artery ; Obstruction시에 Wallenberg's Syndrome(= Lateral... |
| RAS | 1) Reticular Activating(Activation) System 2) Renal Artery Stenosis |
| RBCA | Right Brachio-Cephalic(Innominate) Artery |