树鼩(Tuapaia belangeri chinensis)的动脉

ARTERIAL SYSTEM IN CHINESE TREE SHREW (TUPAIA BELANGERI CHINENSIS)

本文在对中国树鼩的动脉系作系统解剖的基础上,记述了树鼩动脉分支的主要特征。同时,还与其他有关种类作了比较研究。结果表明,中国树鼩动脉系的主要特征与树鼩科中的其他种类如笔尾树鼩、普通树鼩和地树鼩等的动脉系极为相似,而与灵长类中的猿猴类有较大差异。

The specimens involved in this paper include 3 males, 2 females captured from Lu Quan County, China and are deposited as the anatomic examples in order to observe the arterial system under the surgical microscope. The remits arc: as follows. The arterial system indicates evolutionary position of the animal. The characters of this animal arc different from other animn1s, particular in primates on the following respects. 1 There arc three branches on arcus aortae (anonyma, left common carotid and subelavian arteries), which arc similar to the A type shown in the oilier primates; 2 Stapedial artery including the superior branch (the thick one) and the inferior branches (ihc slender one) are observed; 3 Willis' circle exist; 4 Four branches originated from subclavian artery, whick are the vertebral branch, suprascapular branch, deep cervical and costo-cervical trunk; 5 There are two trunks resulted from axillary artery, i. e. the common trunks consisting of thoraco-acromial, the lateral thoracic arteries, and those consisting circumflex humcrus artery and subscapular artery; 6 Brachial artery gives off only a branch, accompanied by ulnar nerves in the anterior arm, which becomes slender ulnar artery; 7 In the anterior arm, brachial artery continue to become the mediana artery, instead of dividing into radial and ulnar arteries; 8 Mediaia artery gives off as four arteriae digitales palmares communes and no true palmar arch exists. But the most ulnaris arteries by the ulna communicate with the descend slender ulnar artery following the ulnar nerves; 9 Common iliac artery was not observed, but the distal end of the abdominal aorta divided into the external and internal iliac arteries; 10 Being smaller and slender, ischiac artery distribute in the musculcs of posterior aspect of the thigh; 11 From femoral artery, two branches arc arisen directly. It correspond to its supplying area of the blood, the deep femoral artery existing in the human; 12 In order to supply the blood of plantar area, saphenous artery continue to form posterior tibial artery; 13 Dorsal pedcs artery comes from anterior tibial artery.