耳管鼓室口周辺における内頸動脈の観察
ヒト側頭骨標本での検討
1989 年 20 巻 1 号 p. 273-274
詳細
1989 年 20 巻 1 号 p. 273-274
The measurement of variation of the course of the internal carotid artery was taken and dehiscence of the carotid canal was observed. One hundred and seventy five human temporal bones (110 individuals) sectioned horizontally were used for this study. The results: aberrant course of carotid artery was not observed; dehiscence of carotid canal was found in 56 out of 175 ears (32%) ; dehiscence of more than 0.4mm in diameter was found in 24 ears (13.7%) ; frequency of dehiscence increased with aging; in cases having dehiscence of more than 0.3mm in diameter, many (66%) had a history of hypertension. The relationship between dehiscence and pulsating pressure to bone is discussed.
