Base of the heart

Base of the heart
Base and diaphragmatic surface of heart. (Base is at right.)
Latin	basis cordis
Gray's	subject #138 527
Dorlands/Elsevier	b_05/12179132

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

The base of the heart, directed upward, backward, and to the right, is separated from the fifth, sixth, seventh, and eighth thoracic vertebræ by the esophagus, aorta, and thoracic duct.

It is formed mainly by the left atrium, and, to a small extent, by the back part of the right atrium.

Somewhat quadrilateral in form, it is in relation above with the bifurcation of the pulmonary artery, and is bounded below by the posterior part of the coronary sulcus, containing the coronary sinus.

On the right it is limited by the sulcus terminalis of the right atrium, and on the left by the ligament of the left vena cava and the oblique vein of the left atrium.

The four pulmonary veins, two on either side, open into the left atrium, while the superior vena cava opens into the upper, and the anterior vena cava into the lower, part of the right atrium.

External links

• -1939144647 at GPnotebook

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 As such, some of the information contained herein may be outdated.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.