For Providers -- Atlas of Human Anatomy

The left heart chamber, opened anteriorly.

Translated by: Ronald A. Bergman, PhD and Adel K. Afifi, MD, MS
Peer Review Status: Internally Peer Reviewed

a) Left atrioventricular orifice (s. ostium venosum s. mitral orifice).
b) Mitral valve, right (s. medial s. anterior) cusp.
c) Mitral valve, left (s. posterior s. lateral) cusp.
d) Papillary muscle with chordae tendineae.
e) Trabecula carneae.
f) Interventricular septum.
g) Aorta (origin or root).
h) Ostium of aorta, posterior semilunar cusp.
i) Ostium of aorta, right semilunar cusp.
k) Ostium of aorta, left semilunar cusp.
l) Coronary artery, origin.
m) Aortic sinus.
n) Nodulus (nodulae Arantii).