A STUDY OF THE PATTERNS OF THE ARTERIAL DISTRIBUTION OF SPINAL CORD
- VernacularTitle:脊髓动脉及其配布形式
- Author:
Baochun JIN
;
Jinku LI
;
Jingde WANG
- Publication Type:Journal Article
- Keywords:
Spinal cord;
Blood supply;
Artery
- From:
Acta Anatomica Sinica
1953;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
The arteries of the spinal cord on surface have been observed in 62 Chinese adults and 39 children.Anteriorly, the spinal cord was divided into 3 areas, according to the arterial supply.The superior cervical area(segments of C_(1～3) or C_(1～4))was mainly supplied by the anterior spinal arteries; the cervical enlargement area (segments of C_4 or C_5 to T_5 or T_6) was mainly supplied by the arteria intumescentia cervicalis and the lumbar enlargement area (below the segments of T_6 or T_7) was mainly supplied by the arteria intumescentia lumbalis. In the intermediate places between these areas (segments of C_(3～4) and T_(5～6)), the anterior median artery was often narrow or interrupted. Usually the anterior spinal artery united with its fellow of the opposite side to form a single trunk (46.53%). The anterior radicular arteries averaged 5.2 (2～10) in number. The arteria intumescentia cervicalis frequently existed at C_7 and C_8 (C_5～T_3). The arteria intumescentia lumbalis mostly located at T_9 (T_6～L_2), and 72.28% of them being on the left side.Posteriorly, the arteries developed well on the two enlargements. The posterior spinal arteries arised frequently from the vertebral artery (76.41%). The posterior radicular arteries averaged 9.3 (5～21) in number.The authors have raised an objection to the view that the segments of T_4 and L_1 of spinal cord are poor supplied with blood.
