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Middle cardiac vein

ECG leads / veins

Begins at the apex and ascends the posterior interventricular groove beside the posterior descending artery, entering the coronary sinus just before it opens into the right atrium.

Traced from the start

  1. Right (anterior) aortic sinus
  2. Left (posterior) aortic sinus and left main stem
  3. Right coronary arteryLeft circumflex artery
  4. Posterior descending (posterior interventricular) artery
  5. Obtuse marginal branches of the circumflex
  6. Inferior (diaphragmatic) left ventricular wall and posterior third of the septumPosterior (inferobasal) left ventricular wall
  7. Middle cardiac vein

Detail

Runs with
Posterior descending artery (posterior interventricular groove)
Drains
Inferior LV wall and posterior septum; the posterior vein of the left ventricle drains the inferobasal wall separately into the sinus

Practise this structure

1 question in the bank tagged Coronary Circulation.

A 62-year-old man describes tightness across the chest when he walks up the hill to his home; it settles within three minutes of rest. He first noticed it a mon…

Foundations · common