Dahlager J I, Bilde T
Scand J Urol Nephrol. 1976;10(2):115-9. doi: 10.3109/00365597609179669.
The collateral blood flow to the rabbit kidney was determined by two methods: (1) measurement of the venous flow after clamping of the renal artery and (2) Hippuran clearance of the clamped kidney. The collateral blood flow was found to be 0.012 ml/min/g kidney equivalent to 0.2% of the entire blood flow to the rabbit kidney. Compared with collateral blood flow in other mammals (as humans and dogs) with a collateral flow of 6.2% of the normal flow, the collateral blood flow in the rabbit is very modest. The cranial ureteric artery contributes more than 90% of the entire blood flow, while capsular perforants, important in other mammals, play no role in the supply of the rabbit kidney. Only 50% of the collateral blood flow passes the tubular system. Flow to the medulla calculated from Hippuran clearance was 35% greater than flow to the cortical part of the kidney. The subcapsular cortical tubuli were able to absorb Hippuran from the peritoneal fluid and surrounding tissues after the kidney was dissected free from its surroundings and all vessels severed. Absorption corresponded to an arbitrary serum flow of 0.0002 ml/min/g.
（1）夹闭肾动脉后测量静脉血流量；（2）夹闭肾脏的马尿酸清除率。发现侧支血流量为0.012毫升/分钟/克肾，相当于兔肾总血流量的0.2%。与其他哺乳动物（如人类和狗）的侧支血流量（为正常血流量的6.2%）相比，兔的侧支血流量非常少。肾上部输尿管动脉贡献了超过90%的总血流量，而在其他哺乳动物中很重要的被膜穿支在兔肾供血中不起作用。仅50%的侧支血流量通过肾小管系统。根据马尿酸清除率计算，流向髓质的血流量比流向肾皮质部分的血流量大35%。在肾脏从周围组织游离并切断所有血管后，被膜下皮质小管能够从腹膜液和周围组织中吸收马尿酸。吸收量相当于0.0002毫升/分钟/克的任意血清流量。
