renal lobe renal lobe the renal lobe is a portion of a kidney consisting of a renal pyramid and the renal cortex above it. in humans, on average there are 7 to 18 renal lobes. renal loberenal lobe (not labeled) consists of a pyramid (item #1) and cortex immediately above it. 1. renal pyramid2. interlobular artery3. renal artery4. renal vein5. renal hilum6. renal pelvis7. ureter8. minor calyx9. renal capsule10. inferior renal capsule11. superior renal capsule12. interlobar vein13. nephron14. renal sinus15. major calyx16. renal papilla17. renal columndetailssystemurinary systemarteryinterlobar arteriesveininterlobar veinsidentifierslatinlobi renalesanatomical terminology it is visible without a microscope, though it is easier to see in humans than in other animals. it is composed of many renal lobules, which are not visible without a microscope.