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12

Urinary space

Surface view of processes (secondary and tertiary) Surface view of podocyte process near nucleus (primary)

Visceral layer of Bowman's capsule Parietal layer of Bowman's capsule

Renal corpuscle, dog; x500.

Surface view of podocyte process (primary) Surface view of podocyte process (tertiary) Surface view of podocyte process (secondary)

Surface view of slit diaphragm

Renal corpuscle, dog; x8000.

Surface view of podocyte process (tertiary)

Surface view of podocyte process (secondary)

Surface view of slit diaphragm

Renal corpuscle, dog; x7500. 12 Urinary system Renal corpuscle

Erythrocyte

Wall of with pores

Basement membrane

Cross section of podocyte process (secondary)

Location of slit diaphragm Cross section of podocyte process (tertiary)

Blood barrier, dog; x9000.

Surface view of slit diaphragm

Surface view of wall of glomerular capillary with pores of varying size

Internal view of glomerular capillary, dog; x9000.

Podocyte process

Urinary space

Podocyte process (secondary)

Podocyte process (secondary )

Slit diaphragm

Basement membrane

Capillary endothelium

Blood-urine barrier, dog; x22 000. 12 Urinary system Renal corpuscle

Proximal Vascular pole

Endothelial nucleus Podocyte nucleus

Urinary space

Parietal layer of Bowman's capsule

Distal tubule

Renal corpuscle, dog. PAS stain; x800.

Distal tubule

Parietal layer of Bowman's capsule Urinary space Visceral layer of Bowman's capsule ()

Podocyte nucleus Endothelial cell nucleus Capillary loops

Vascular pole

Renal corpuscle, dog. PAS stain; x450.

Distal tubule Parietal layer of Bowman's capsule Urinary space Visceral layer of Bowman's capsule (podocytes)

Podocyte nucleus Endothelial cell nucleus Capillary loops

Podocyte nucleus

Vascular pole

Renal corpuscle, dog. H.E. stain; x100. 12 Urinary system of

Peritubular vessel

Proximal tubule

Distal tubule

Peritubular vessel

Tubules of nephron (cross section), dog; x4500.

Distal tubule

Peritubular vessel

Distal tubule

Peritubular vessel

Tubules of nephron (cross section), dog; x1800.

Peritubular vessel

Proximal tubule

Distal tubule

Peritubular vessel

Tubules of nephron (cross section), dog; x3500. 12 Urinary system Nephron

Renal capsule

Renal corpuscles

Tubules in medulla

Renal cortex

Renal medulla (zona externa)

Renal medulla (zona interna)

Kidney, cat. H.E. stain; x40.

Renal capsule

Distal convoluted tubule

Renal corpuscles

Proximal convoluted tubule

Straight tubule

Kidney, cat. H.E. stain; x100.

Distal straight tubule Proximal straight tubule

Renal corpuscles

Proximal convoluted tubule

Proximal straight tubule Distal straight tubule Renal corpuscles

Kidney, cat. H.E. stain; x200. 12 Urinary system Nephron

Distal straight tubule

Proximal convoluted tub ule Renal corpuscles

Distal straight tubule

Proximal convoluted tubule

Proximal straight tubule

Kidney, cat. H.E. stain; x200.

Proximal straight tubule Distal straight tubule

Proximal convoluted tub u l e

Glomerulus

Distal straight tubule

Thin tubule

Distal straight tubule

Kidney, cat. H.E. stain; x200.

Interstitial connective tissue with

Collecting duct

Distal straight tubule

Kidney, cat H.E. stain; x480. 12 Urinary system Nephron

Renal capsule

Renal corpuscles

Distal convoluted tubule Distal straight tubule

Proximal convoluted tubule Proximal straight tubule

Kidney, dog. H.E. stain; x40.

Distal convoluted tubule

Distal straight tubule

Proximal convoluted tubule

Proximal straight tubule

Renal corpuscles

Proximal straight tubule

Distal straight tubule

Kidney, dog. H.E. stain; x180.

Thin tubule

Distal straight tubule Capillary

Distal straight tubule (flat section)

Capillary Thin tubule

Capillary Thin tubule

Kidney, dog. PAS stain; x420. 12 Urinary system Nephron

Collecting duct

Distal straight tubule

Collecting duct

Thin tubule

Capillary Collecting duct Distal straight tubule

Kidney, dog. Goldner's Masson trichrome stain; x400.

Simple columnar with typically central, round nucleus

Subepithelial capillary network

Lumen of collecting duct (branching evident)

Epithelium of collecting duct

Kidney, dog. H.E. stain; x480.

Proximal straight tubule

Arcuate vein Juxtamedullary renal corpuscle Proximal straight tubule Distal straight tubule

Juxtamedullary renal corpuscle

Arcuate artery

Kidney, calf. H.E. stain; x100. 12 Urinary system Nephron

Afferent arteriole of

Glomerulus

Cortical

Glomerulus

Kidney, cat. Injected specimen; x80.

Vascular pole of glomerulus with afferent arteriole

Peritubular capillaries and partial sections of distal straight tubules

Peritubular capillaries and partial sections of proximal straight tubules

Vascular pole of glomerulus with afferent arteriole

Kidney, cat. Injected specimen; x120.

Vascular pole of glomerulus with afferent arteriole

Capillaries surrounding distal straight tubules Capillaries surrounding proximal straight tubules

Capillaries surrounding distal straight tubules

Kidney, calf. Injected specimen, x120. 12 Urinary system Nephron

Interlobular vein with erythrocytes Interstitial connective tissue

Juxtaglomerular apparatus Podocyte nucleus Urinary space Nucleus of epithelial cell in parietal layer of Bowman's capsule Distal convoluted tubule

Kidney, pig. Azan stain; x400.

Proximal convoluted tubule

Proximal convoluted tubule

Distal straight tubule

Distal straight tubule

Proximal straight tubule

Peritubular capillaries

Kidney, pig. Azan stain; x200.

Proximal convoluted tubule Juxtamedullary renal corpuscle Proximal straight tubule

Distal straight tubule

Distal straight tubule

Peritubular capillaries

Kidney, pig. Azan stain; x40.