[Anatomical observations on the left atrioventricular valve in man]

30 hearts of male and female, white and non-white Brazilians of different ages were studied. The leaflets of the left atrioventricular valves were removed near the fibrous ring and anatomically studied under chirurgical microscope. The authors observed: the leaflets shape, the presence of comissures, the implantation manner of the chordae tendineae and your distribution on the leaflets. Especial attention was concentrated on the terminology used by different authors for the structures of the "mitral complex".