Third Right Posterolateral Artery

**Semantic type:** Body Part, Organ, or Organ Component

**Definition:** In an individual with a right-dominant heart, this is the third branch that arises from the right coronary artery distal to the right posterior descending artery, when counted from proximal to distal.

**Synonyms:** - 3RD RPL - THIRD RIGHT POSTEROLATERAL ARTERY - THIRD RIGHT POSTEROLATERAL ARTERY SEGMENT