PRELIMINARY OBSERVATIONS ON THE BRANCHES OF THE SUBCLAVIAN ARTERY IN THE CHINESE
- VernacularTitle:国人锁骨下动脉分枝之初步观察
- Author:
Changxian ZHANG
;
- Publication Type:Journal Article
- From:
Acta Anatomica Sinica
1959;0(Z2):-
- CountryChina
- Language:Chinese
-
Abstract:
The position of the subclavian artery in the neck and the origin of its branches in 90 sides of 74 Chinese cadavers were observed and analysed. In the neck,the subclavian artery ascends about 2.19 cm above the upper border of the clavicle and about 1.05 cm medial to the middle-point of the clavicle. The origin of the vertebral artery,the thyrocervical trunk and the internal mammary artery (except 1 case) is very constant,arising from the first (or medial part) of the subclavian artery; the costo-cervical trunk may arise from any one of the three parts,on the left side more often from the second or middle part (62.5%) and on the right side more often from the first part (73.3%);the transverse cervical artery may also arise from any one of the three parts,more often from the first part (64.66%),as a branch of the thyro-cervical trunk. 18 types Were observed in the pattern of branching of the thyro-cervical trunk.Type Ⅰ with the artery divided into the inferior thyroid artery,ascending cervical artery,superficial cer- vical artery and suprascapular artery and type Ⅱ into inferior thyroid ascending cervical,transverse cervical and suprascapular artery occurred more often than other types (type Ⅰ 18.00% and type Ⅱ 26.00% respectively). The supra-scapular artery arising from the thyro-cervical trunk or from the internal mammary artery in most cases passes above the suprascapular ligament;that arising from the third part of the subclavian artery or from the axillary artery in most cases passes below the ligament. On the left side the inferior thyroid artery more often passes in the front of the inferior laryngeol nerve,on the right side it passes in front and behind the nerve in almost equal num- bers.
