Functional Distribution of Arteries Supplying the Dog Mandible

Hasegawa Kazuo, Ishida Masao, Horio Akira

doi:10.2504/kds.27.171

Forty adult dogs were prepared for this experiment. They were ansethetized by Ravonal and infused with 10% gelatine solution with addition of india ink through the left ventricle or proximal stem of the ligated artery. After decapitation, fixation and decalcification, both of the mandibles were cut into 5 blocks and the posterior cutting surfaces of anterior 4 blocks were observed under a binocular microscope. The obtained results are as the following : 1. The ligature of the unilateral inferior alveolar artery showed in the distal part than the ligated point that the more posterior part of the experimented mandible has the lower infusion grade, but the anterior part was compensated by the contralateral artery. 2. The ligature of the unilateral lingual and facial artery showed a little low infusion grade in the periosteal layer. 3. The ligature of the maxillary artery shows much lower density than that of the inferior alveolar artery. 4. The ligature of the common carotid artery resulted in summation of plural ligatures of its branches. 5. The ligature of two kinds of unilateral arteries showed less tensely infused areas corresponding to their supplying areas. 6. The selective infusion resulted in the lower grade of infusion but the spreading area was wider than the arterial supply. 7. From these experiments, functional compensation areas of the arteries were wider than anticipation from the morphological distribution.

Functional Distribution of Arteries Supplying the Dog Mandible

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