Intervenous tubercle
Tuberculum intervenosum
- Eponym: Tubercle of Lower
Definition
The intervenous tubercle (tuberculum intervenosum; tubercle of Lower) is a small projection on the posterior wall of the atrium, above the fossa ovalis. It is well visible and distinct in the hearts of quadrupeds (see Intervenous tubercle in vet-Anatomy), but in man is scarcely visible. It is supposed to lower and direct the blood from the superior vena cava toward the atrioventricular opening.
References
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
