The Intramural Arterics in the Left Ventricle of the Rabbit Heart / 西安交通大学学报(医学版)

ABSTRACT

The normal arterial patterns in the left ventricle wall of 100 rabbithearts were studied by the methods of postmortem coronary angiogram, theclearing method and histological section, compared with that of the humanheart. The intramural arterial patterns in the left ventricle of the rabbitheart are similar to those of the human heart. "Branching" type arteries(Class A vessels) supply the whole of myocardium, including the subendoca-rdial zone, while "straight" type arteries(Class B vessels)mainly supply thepapillary muscle and trabeculae carneae where they form the subendocardialplexus. The arterial type in papillary muscles may be classified intosegmental pattern, axial pattern and mixed pattern. The arterial distributionof the left ventricular side in the interventricular septum is ruleless. Thecappillaries in all areas run parallel with the myocardial fibres and showthe crosscorexions somewhere.