Intervenous tubercle

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Intervenous tubercle
Latin tuberculum intervenosum
Gray's p.531
Anatomical terminology

The intervenous tubercle (tubercle of Lower) is a small projection on the posterior wall of the right atrium, above the fossa ovalis.

It is distinct in the hearts of quadrupeds, but in man is scarcely visible.

It was supposed by Lower to direct the blood from the superior vena cava toward the atrioventricular opening.

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This article incorporates text from a public domain edition of Gray's Anatomy.