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Middle Cardiac Vein
Cardiovascular System

Middle Cardiac Vein

Vena media cordis

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Quick Facts

Origin: The cardiac apex.

Course: Superiorly within the posterior interventricular sulcus.

Tributaries: Small unnamed veins.

Drainage: Inferior (diaphragmatic) surface of the heart.

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Origin

The middle cardiac vein originates at the cardiac apex.

Course

The middle cardiac vein courses superiorly within the posterior interventricular groove and drains into the coronary sinus. Within in the posterior interventricular groove, it is accompanied by the posterior interventricular artery.

Tributaries

The middle cardiac vein is formed by the union of small unnamed veins.

Structures Drained

The middle cardiac vein drains the inferior (diaphragmatic) surface of the heart.

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Middle Cardiac Vein

ScienceDirect image

The middle cardiac vein (or posterior interventricular vein) ascends the diaphragmatic surface of the heart from the apex and opens into the coronary sinus just within the sinus os.

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