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本文观察了常规防腐福尔马林固定的心脏50例（男42，女6，另2例无性别记载，其中成人43例，儿童5例）。解剖后肉眼观察壁冠状动脉（Muralcoronarya．）和心肌桥（MyocardialBridging）并进行有关方面测量；取部分壁冠状动脉的桥前。桥下、桥后段经组织学切片显微镜观察和目、台尺测量；测量了心肌桥的长、宽、厚度及前空间沟的心肌桥与左冠状动脉起始部间距离（3．01－5．00cm，占74％），后室间沟的心肌桥与房室交点间距离（1．01－3.00cm，占86％）；计数并测量了穿过心肌桥的动脉穿支的数目和管径（多数为1—3支）。发现心肌桥出现率高达66％（50个心脏中出现33例）－，其中前空间沟心肌桥出现率为66％；后空间沟心肌桥出现率为34％；前空间沟心肌桥（1．94cm）较后室间沟者（1．75cm）路长；前室间为的心肌桥其宽度多数（63％）在3－5mm间，而后室间沟者多数（57％）在1－3mm间；大部分心肌桥的厚度都在0．01一0.2cm之间。桥前段壁冠状动脉内膜出现显著不规则增生，其内膜厚度与桥下段及桥后段内膜厚度间具有显著变异（P＜0．05）和高度显著性差异（P＜0．01）。这些数据说明壁冠状动脉桥前段容易发生内膜增生以及它与临床所述之冠状动脉粥样硬化的部位完全一致；并提供了临床作心肌桥切除和壁冠状?
In this paper, we observed 50 cases of conventional anticorrosive formalin-fixed heart (male 42, female 6, and 2 cases without sex, of which 43 were adults and 5 were children). Macroscopic anatomical observation of the wall of the coronary artery (Muralcoronary artery) and myocardial bridge (MyocardialBridging) and related aspects of measurement; take part of the wall of the coronary artery before the bridge. The length of the bridge, the thickness of the bridge and the distance between the bridge of the anterior space and the beginning of the left coronary artery (3.01- 5.00cm, accounting for 74%), the distance between the posterior interventricular groove and the atrioventricular node (1.01-3.00cm, 86%); counting and measuring the number of arterial perforators passing through the myocardial bridge and Diameter (mostly 1-3). The incidence of myocardial bridge was found to be as high as 66% (33 out of 50), with an incidence of 66% in the anterior space ditch and 34% in the posterior space ditch. 94cm) was longer than the dorsal intercostal space (1.75cm). The width of the anterior intercavitary myocardial bridge was mostly between 3-5mm (63%), while the majority of posterior intercostal space (57%) was between 1-3mm Between; most of the thickness of the myocardial bridge are between 0.01 a 0.2cm. Significant irregular hyperplasia of coronary intima occurred in the anterior segment of the bridge with significant difference (P <0.05) and highly significant difference (P <0.01) between intima thickness and intima-media thickness in the inferior and posterior segments of the bridge . These data indicate that the anterior wall segment of the coronary artery is prone to intimal hyperplasia and that it is completely consistent with the site of coronary atherosclerosis as described in the clinic and provide clinical outcomes for myocardial bridge resection and wall crowing.