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580 SeCTIOn III Renal ` RENAL—ANAtomy Renal ` RENAL—PhysioLogy

` RENAL—ANAtomy

Kidney anatomy and glomerular structure

Cortex Interlobar Left kidney is taken during living donor
Medulla
artery transplantation because it has a longer
Medullary Interlobular renal vein.
pyramids (papillae) artery Afferent = Arriving.
Segmental Arcuate Efferent = Exiting.
artery artery
Renal Renal blood flow: renal artery Ž segmental
artery artery Ž interlobar artery Ž arcuate artery
Ž interlobular artery Ž afferent arteriole
Renal Ž glomerulus A Ž efferent arteriole Ž vasa
pelvis
recta/peritubular capillaries Ž venous outflow.
Renal Left renal vein receives two additional veins: left
vein suprarenal and left gonadal veins.
Despite high overall renal blood flow, renal
Ureter medulla receives significantly less blood flow
Cross-section of kidney than renal cortex Ž very sensitive to hypoxia
Ž vulnerable to ischemic damage.
Bowman capsule
E erent arteriole (parietal layer) Distal convoluted tubule
Podocytes A
(visceral layer)*
Juxtaglomerular
cells
Macula densa
Distal convoluted
tubule
Basement
membrane*
Endothelial cells*
Mesangial
cells
A erent arteriole
*Components of glomerular filtration barrier.
Cross-section of glomerulus
Glomerulus Bowman space

FAS1_2019_14-Renal.indd 580 11/7/19 5:42 PM