摘要
用树脂铸型方法,在解剖显微镜及扫描电镜下,观测了大鼠上、下切牙的牙髓血管构筑。其特征为,牙髓中轴血管束由10~20支微动脉和8~12支微静脉构成;中轴血管束中的微动脉和微静脉呈长距离的逆流配置;成牙本质细胞区的毛细血管丛,由分节段且互相独立的微动脉供应。
By using replica cast SEM method,the vascular architecture of the dental pulp of rat incisors was studied.The characteristics of the vascular architecture are as follows:1.The axis of the dental pulp is occupied by the central vascular bundle,which consists of 10 to 20 arterioles and 8 to 12 venules.2.The arterioles(30-50μm in diameter)and the venules(50-80μm in diameter)located in the central bundles are arranged parallely in a relatively long distance as a countercurrent system.The longest distance is about 12 mm.3.Each arteriole of the central vascular bundle supplies an independent area of the dentin of the tooth.The territory of an arteriole is about 700 to 1400μm in length.4.The arteriole of the central bundle breaks up into capillaries(4~6μm in diameter)which are mainly distributed over the odontblast area and form a complex 3-dimensional plexus.
作者
真炳攸
可金星
杜云
Zhen Bingyou;Ke Jinxing;Du Yun(Department of Histology and Embryology,The Third Military Medical College,Chongqing;The South-Western College,Chongqing)
出处
《解剖学报》
CAS
1985年第3期312-314,348,共4页
Acta Anatomica Sinica
关键词
切牙牙髓
微血管构筑
逆流系统
大鼠
Incisor
Dental pulp
Microvasculature
Countercurrent system
Rat
