喉頭の血管分布について
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概要
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After the injection of the radio-opaque media into the artery of the larynx of the fresh adult bodies (48 male cases and 12 female cases, totally 60 cases), the author studied the distribution and course of arteries by X-ray stereogram. The conclusions were as follows:1) The larynx was supplied by A. laryngea cranialis, A. laryngea caudalis and R. cricothyreoideus.2) Most of A. laryngea cranialis branched off from A. thyreoideus cranialis. Seldom A. laryngea cranialis branched off from external carotid artery in Japanese. (Fig.12)3) In most of the cases A. laryngea cranialis penetrated through membrana thyreoidea. In about 20%, the artery penetrated through foramen threoidea especially in the left side.4) In most of the cases R. cricothyreoideus branched off from A. thyreoidea cranialis and anastomosed with that of the other side, forming a circle of artery.5) A. laryngea cranialis had 5 branches (R. ascendens, R. ventralis, R. dorsalis, R. medialis and R. descendens). The distribution of artery in the larynx were classified into 7 different types (Fig.4).Type I was most frequently found. Type 2 was next infrequency. In most of the cases, distribution of the artery was symmetrical.6) Epigjoffis area was supplied chiefly by R. ascendens. The distribution was classified into 5 different types (Fig. 8).7) Plica aryepiglottica area was supplied chiefly by R. ascendens.8) Plica ventricularis area was supplied chiefly by R. medials and R. ventralis.9) Ventriculus isryngis, vocal cord and anterior commisure areas were supplied chiefly by R. medialis, R. ventralis, R. dorsalis, R. cricothyreoideus and A. laryngea caudalis.10) Laryngeal side of arytaenoid area was supplied chiefly by R. medialis, or R. medialis and R. dorsalis. Esophageal side was supplied by R. descendens and A. laryngea caudalis (Fig.10).11) Subglottis area was supplied by R. cricothyreoideus, A. laryngea caudalis and R. desce ndens of A. laryngea cranialis.12) Upon the movement of the larynx accompanied by the movement of vocal cord, respira tion and deglutition, redundance in the length of arteries was observed as well as the elasticity of soft tissue.
- 一般社団法人 日本耳鼻咽喉科学会の論文