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A MANUAL OF PHYSIOLOGY 



FIG. 124. DIAGRAM OF 

 BLOODVESSELS OF KIDNEY 

 (KLEIN, after LUDWIG). 



ai, interlobular artery ; m, in- 

 terlobular vein ; g, glomerulus, 

 to which an afferent artery is seen 

 coming from the interlobular 

 artery and from which an efferent 

 artery proceeds to break up into 

 a capillary network surrounding 

 the renal tubules ; vs, vena stel- 

 lata ; ar, arteriae rectae ; vb, leash 

 of venae rectae ; vp, vascular net- 

 work round ducts at apex of a 

 papilla. 



FIG. 125. DIAGRAM OF RENAL TUBULE 



(KLEIN). 



A, cortex ; a, layer of cortex immediately under 

 capsule containing no Malpighian corpuscles; 

 a', inner layer of ccrtex devoid of Malpighian cor- 

 puscles ; B, boundary layer ; C, papillary zone of 

 medulla; i, Bowman's capsule ; 2, neck of capsule ; 

 3, proximal convoluted tubule ; 4, spiral tubule ; 

 5, descending part of Henle's loop-tubule ; 6, the 

 loop; 7, 8, and 9, ascending limb of loop tubule; 

 10, irregular tubule; n, distal convoluted tubule; 

 12, junctional tubule ; 13, collecting tubule, in a 

 medullary ray or pyramid of Ferrein ; 14, collectin 

 tubule in the boundary layer; 15, large collecting 

 tubule ending in a duct of Bellini. 



