Intervenous tubercle

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Intervenous tubercle
Latin	tuberculum intervenosum
Gray's	subject #138 531
Dorlands/Elsevier	t_21/12828923

The intervenous tubercle (tubercle of Lower) is a small projection on the posterior wall of the 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.

[edit] External links

• Photo at wsu.edu (vet)
• Dictionary at eMedicine Intervenous+tubercle

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

v • d • e Anatomy of torso, cardiovascular system: heart

atria (interatrial septum, musculi pectinati) • ventricles (interventricular septum, trabeculae carneae, chordae tendinae, papillary muscle) • valves base • apex • grooves (coronary/atrioventricular, interatrial, anterior interventricula, posterior interventricular) • surfaces (sternocostal, diaphragmatic) • borders (right, left) right heart (vena cavae, coronary sinus) → right atrium (auricle, fossa ovalis, limbus of fossa ovalis, crista terminalis, valve of the inferior vena cava, valve of the coronary sinus) → tricuspid valve → right ventricle (conus arteriosus, moderator band/septomarginal trabecula)  → pulmonic valve → (pulmonary artery and pulmonary circulation) left heart (pulmonary veins) → left atrium (auricle) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and systemic circulation) pericardium  (sinus) • epicardium • myocardium • endocardium • cardiac skeleton (fibrous trigone, fibrous rings) conduction system cardiac pacemaker • SA node • AV node• bundle of His • Purkinje fibers