Renal capsule

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Renal capsule
1. Parenchyma    2. Cortex 3. Medulla 4. Perirenal fat 5. Renal capsule 6. Ureter 7. Pelvis of kidney 8. Renal artery and Renal vein 9. Renal hilum 10. Calyx
Transverse section, showing the relations of the capsule of the kidney. (Labeled as "adipose capsule".)
Latin	capsula adiposa renis, capsula fibrosa renis
Gray's	subject #253 1220
Dorlands/Elsevier	c_07/12211754

The renal capsule is a tough fibrous layer surrounding the kidney and covered in a thick layer of perinephric adipose tissue. It provides some protection from trauma and damage.

The renal capsule relates to the other layers in the following order (moving from innermost to outermost):

1. renal medulla
2. renal cortex
3. renal capsule
4. perinephric fat (or "perirenal fat")
5. renal fascia
6. paranephric fat (or "pararenal fat")
7. peritoneum (anteriorly), and transversalis fascia (posteriorly).

Contents 1 Adipose capsule 2 Additional images 3 See also 4 References 5 External links

[edit] Adipose capsule

The periephric fat may be regarded as a part of the renal capsule, called the adipose capsule of kidney.^[1]

[edit] Additional images

Frontal section through the kidney

[edit] See also

• Renal medulla
• Renal pyramid
• Renal artery
• Renal vein

[edit] References

[edit] External links

• Anatomy at PSU urogen/dissectkidney2
• Organology at UC Davis Urinary/mammal/cortex1/cortex3 - "Mammal, kidney cortex (LM, Medium)"
• Human anatomy at Dartmouth figures/chapter_29/29-5.HTM

v • d • e Urinary system – Kidney Layers Renal fascia • Renal capsule • Renal cortex  (Renal column) • Renal medulla (Renal sinus, Renal pyramids, medullary interstitium) • Renal lobe • Cortical lobule • Medullary ray • Nephron Afferent circulation Renal artery → Segmental arteries → Interlobar arteries → Arcuate arteries → Cortical radial arteries → Afferent arterioles → Renal corpuscle (Glomerulus, Bowman's capsule) Renal tubule Proximal tubule → Loop of Henle (Descending, Thin ascending, Thick ascending) → Distal convoluted tubule → Connecting tubule → Collecting ducts → Duct of Bellini → Renal papilla → Minor calyx → Major calyx → Renal pelvis → Ureter Efferent circulation Glomerulus → Efferent arterioles → Peritubular capillaries / Vasa recta → Arcuate vein → Interlobar veins → Renal vein Juxtaglomerular apparatus Macula densa • Juxtaglomerular cells • Extraglomerular mesangial cell Filtration Glomerular basement membrane • Podocyte • Filtration slits • Intraglomerular mesangial cell • Tubular fluid Renal physiology Acid base physiology • Fluid balance