i886 



HUMAN ANATOMY. 



seven in number — follow the renal artery and vein, especially the latter, which they 

 surround. The lymphatics of the kidney end chiefly in the nodes lying at the sides 

 or in front of the aorta ; small lymph-nodes frequently occur in the vicinity of the 

 hilum. 



The nerves of the kidney are derived from the renal plexus formed by contri- 

 butions from the solar and aortic plexuses and the least splanchnic nerve. The 



Fig. 1613. 



Stellate vein 



Glomerulus of 

 Malpighian body 



Interlobular artery 



Interlobular vein 



Vasse rectae 

 of medulla 



>?— Capillary net-work in 

 labyrinth 



T^ "jjT Capillary net-work in 

 A. v-.«^^ medullary ray 



Large blood-vessels at 

 junction of cortex and 

 medulla 



Longitudinal section of injected kidney of dog, showing general arrangement 

 of blood-vessels of cortex and adjacent medulla. X 40. 



plexus accompanies the renal artery, which it surrounds with its mesh-work, into the 

 sinus ; within the latter is formed a well-marked perivascular net-work from which a 

 number of twigs are given off to supply the walls of the pelvis and ureter, while the 

 majority accompany the vessels into the kidney. The investigations of Retzius, 

 Kolliker, Disse, Berkley, and especially of Smirnow,^ have shown that all the renal 

 blood-vessels are generously provided with fibres for the supply of the muscular 



^ Anatom. Anzeiger, Bd. xix., iqot 



