Second Obtuse Marginal Branch Artery

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

**Definition:** The second artery arising from the left circumflex artery that supplies the lateral wall, when counted from proximal to distal.

**Synonyms:** - 2ND OM - SECOND OBTUSE MARGINAL BRANCH ARTERY - SECOND OBTUSE MARGINAL BRANCH ARTERY SEGMENT - Second Left Marginal Artery