posterior papillary muscle

Introduction

Smaller than the anterior papillary muscle, may consists of several parts.

• arise from the inferior wall of the right ventricle
• tendinous cords attach to the posterior & septal cusps of the tricuspid valve

Posterior papillary muscle in left ventricle is larger than the right ventricle, because the first works harder.

More general terms

• papillary muscle

Additional terms

• septal papillary muscle