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Modality: Anatomic specimen

Orientation: Basal short axis view (close up)

Description: This heart has again been dissected in the fashion of the previous short axis views (A010100-141a, A010100-142a, A010100-143a, A010100-144a, 010100-145a and 010100-146a) , and is shown in close-up fashion to demonstrate the relationship of the tricuspid, mitral and aortic valves to the interventricular component of the membranous septum. The membranous septum is located at the junction of the inlet, outlet, and trabecular components of the muscular septum, with the aorta deeply wedged between the mitral valve and the muscular septum supporting the septal leaflet of the tricuspid valve. The membranous portion of the interventricular septum establishes fibrous continuity between the leaflets of the tricuspid and aortic valves. The area of aortic to mitral fibrous continuity is demonstrated with yellow dots, and is seen to extend to the border of the membranous septum. The subpulmonary muscular infundibulum wraps around the aortic outflow from the left ventricle. The mitral valve is lifted away from the septum, with the double headed red arrow demonstrating how the right ventricular inlet is separated from the subaortic outlet from the left ventricle. The yellow arrow indicates the anterior interventricular coronary artery.

Contributor: Diane E. Spicer, BS

Institution: The Congenital Heart Institute of Florida (CHIF)

Image Label:  A010100-147a

Source of Image: The Congenital Heart Institute of Florida (CHIF)

Image Certification: pending

AWG Rating: pending