234 ELEMENTARY PHYSIOLOGY. [XXII. 



medulla and form a network throughout it ; 

 the meshes are elongated in the direction of 

 the tubes, especially near the summit of the 

 papilla. 



c. The interlobular arteries and veins run- 

 ning from the larger vessels outwards in the 

 cortex between the medullary rays; the 

 arteries give off on all sides (two rows will 

 probably be seen in the section) small arteries 

 (arteriaB afferentes), one to each end-capsule 

 where it breaks up into capillaries to form the 

 glomerulus. 



d. The small vein (vena efferens) issuing from 

 each end-capsule and breaking up into capil- 

 laries which form a network in the cortex ; 

 the veins from the innermost capsules break 

 up into a brush of capillaries like the arterise 

 rectse and run towards the medulla. 



e. The small veins running from the capillary 

 network of the cortex to the interlobular 

 veins ( c). 



f. Here and there the small artery running to 

 a glomerulus may be seen to send a branch 

 direct to the capillary network of the cortex ; 

 similar direct branches will also be seen in 

 the outer part of the cortex running from 

 the ends of the interlobular arteries. 



g. Small veins at the periphery of the cortex 

 (venas stellate) also arising from the capilla- 

 ries of the cortex. 



