The outer layer of the kidney, just deep to the renal capsule, is the _____. Columns of tissue from this region called _____ extend toward the hilus; it is within these columns that those renal blood vessels having the largest diameter lie.

3000+ review questions on anatomy and physiology. 

Anatomy refers to the internal and external structures of the body and their physical relationships, whereas physiology refers to the study of the functions of those structures.