THE ACCESSORY MENINGEAL ARTERY IN THE CHINESE
- VernacularTitle:中国人的硬脑膜副动脉
- Author:
Zhijie SHENG
- Publication Type:Journal Article
- From:
Acta Anatomica Sinica
1955;0(03):-
- CountryChina
- Language:Chinese
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Abstract:
The common description of the accessory meningeal artery in the textbooks of ana-tomy is either too brief or inaccurate, and some current misconceptions and contradic-tions have not yet been cleared up. Our investigation is based on the results of 57 dissections of 33 cadavers with thefollowing conclusions: 1. Frequency of occurrence: The accessory meningeal artery is found in 50 sidesof 32 cadavers, i.e. in 87.7% of the dissections and 97.0% of the cadavers. 2. The accessory meningeal artery often originates from the middle meningeal artery(the 2nd class 70% and the 4th class 8%), and less frequently originates from themaxillary artery (the 1st class 16%) or from both of them (the 3rd class 6%). 3. The accessory meningeal artery often passes medial (type P 50%) or lateral(type S 28%) to the posterior division of the mandibular nerve (or the inferior dentalnerve and the lingual nerve). Usually the artery courses forwards and upwards intothe pterygospinous foramen. 4. In most cases, the main trunk of the accessory meningeal artery does not passthrough the foramen ovale. 5. The accessory meningeal artery distributes principally to the lateral and medialpterygoid muscle, tensor veli palatini muscle, parts of the sphenoid bone, and the man-dibular nerve. In addition, its small ramus passes through the accessory foraminum ornotch of the foramen ovale into the middle cranial fossa, and supplies the dura materanterior to the foramen ovale. Some possible racial differences between the Chinese and American materials arediscussed.
