Kidneys: Gross Anatomy
• Renal Capsule: The outer protective covering of
• Renal Cortex: Where major portion of nephrons
• Renal Medulla: Parts of the nephron’s loops of
henle delve into this region. Also where the
collecting ducts extend into.
• Renal Pelvis: Where the urine pools together
from the collecting ducts and drains into the
• Renal corpusle consists of a:
– Glomerulus: a ball of leaky capilliaries that
sits inside the Bowman’s capsule.
– Bowman’s capsule: A capsule that
surrounds the glomerulus and catches the
filtrate that comes through and funnels it off to
the tubes of the nephron.
• the Renal Tubule consists of the:
– Proximal convoluted tubule: Reclaims glucose,
amino acids, vitamins and minerals.
– Loop of henle: reclaims most of the water and
pumps out salt to produce an osmotic gradient.
– Distal convoluted tubule: secretes and absorbs
salts and minerals back into the urine to adjust the
salt water balance. It’s function is affected by
• Collecting ducts: pass the urine down to the
calyxes, into the renal pelvis that lead to the
ureters and the bladder.