A bacteriostatic is a compound that prevents bacterial growth. Though a bacteriostatic won't kill bacteria, it will limit the...
1 Cortex â the outer region of the kidney; extensions of the cortical tissue, contains about one million blood filtering nephrons. 2  Nephron â these are the filtration units in the kidneys. 3  Medulla â inner region of the kidney contains 8-12 renal pyramids.
See also brain. renal cortex the granular outer layer of the kidney, composed mainly of glomeruli and convoluted tubules, extending in columns between the pyramids that constitute the renal medulla.enal cortex, the highly vascularized granular outer layer of the kidney, containing approximately 1.25 million glomeruli and convoluted tubules, which filter body wastes from the blood, reclaim useful materials, and dispose of the remainder as urine.