Talk:Renal System Histology: Difference between revisions
From Embryology
(Created page with "==Practical Overview== * Kidneys, ureters, urinar bladder, urethra Kidneys * elimination of foreign substances * regulation of the amount of water in the body * control of the ...") |
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'''selective''' - resorption and excretion - tubular system of the kidney | '''selective''' - resorption and excretion - tubular system of the kidney | ||
Blood Supply | ===Blood Supply=== | ||
* renal artery | * renal artery | ||
* interlobar arteries (across medulla thru renal columns) | * interlobar arteries (across medulla thru renal columns) | ||
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* glomerular capillary network | * glomerular capillary network | ||
* efferent glomerular arterioles | * efferent glomerular arterioles | ||
===Glomerulus=== | |||
* glomerulus - round (~0.2 mm in diameter) blind beginning of the nephron | |||
* ''' vascular pole''' - invaginated by a tuft of capillaries | |||
* '''urinary pole''' - substances leave the capillaries enter the renal tubule | |||
* '''Bowman's capsule''' - anatomical glomerulus is enclosed by two layers of epithelium. | |||
** outer or parietal layer of Bowman's capsule form a simple squamous epithelium. | |||
** inner layer, podocytes in the visceral layer, are extremely complex in shape. | |||
* Mesangial cells in the glomerulus form the connective tissue that gives structural support to podocytes and vessels | |||
Juxtaglomerular cells | Juxtaglomerular cells | ||
* smooth muscle cells afferent glomerular arteriole | * smooth muscle cells afferent glomerular arteriole | ||
* epithelial-like cells | * epithelial-like cells | ||
Revision as of 14:12, 29 August 2011
Practical Overview
- Kidneys, ureters, urinar bladder, urethra
Kidneys
- elimination of foreign substances
- regulation of the amount of water in the body
- control of the concentration of most compounds in the extracellular fluid
filtration - glomeruli of the kidney
selective - resorption and excretion - tubular system of the kidney
Blood Supply
- renal artery
- interlobar arteries (across medulla thru renal columns)
- arcuate arteries (cortico-medullary junction
- interlobular arteries
- afferent glomerular arterioles
- glomerular capillary network
- efferent glomerular arterioles
Glomerulus
- glomerulus - round (~0.2 mm in diameter) blind beginning of the nephron
- vascular pole - invaginated by a tuft of capillaries
- urinary pole - substances leave the capillaries enter the renal tubule
- Bowman's capsule - anatomical glomerulus is enclosed by two layers of epithelium.
- outer or parietal layer of Bowman's capsule form a simple squamous epithelium.
- inner layer, podocytes in the visceral layer, are extremely complex in shape.
- Mesangial cells in the glomerulus form the connective tissue that gives structural support to podocytes and vessels
Juxtaglomerular cells
- smooth muscle cells afferent glomerular arteriole
- epithelial-like cells
