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Encyclopedia > Renal medulla
Renal medulla
1: Parenchyma
2: Cortex
3: Medulla
4: Perirenal fat
5: Capsule
6: Ureter
7: Pelvis of kidney
8: Renal artery and Renal vein
9: Hilus
10: Calyx
Vertical section of kidney. (Label "medullary sub." visible near top.)
Gray's subject #253 1221
MeSH Kidney+medulla

The renal medulla is the innermost part of the kidney. The renal medulla is split up into a number of sections, known as the renal pyramids. Blood enters into the kidney via the renal artery, which then splits up to form the arcuate arterioles. The arcuate arterioles each in turn branch into interlobar arterioles, which finally reach the glomeruli. At the glomerulus the blood reaches a highly disfavourable pressure gradient and a large exchange surface area, which forces a lot of the blood out of the vessel into the renal tubules. Flow continues through the renal tubules, including the proximal tubule, the Loop of Henle, and finally leaves the kidney by means of the collecting duct, leading to the renal urethra. Image File history File linksMetadata Illu_kidney. ... Parenchyma is a term used to describe a bulk of a substance. ... The renal cortex is the outer portion of the kidney between the renal capsule and the renal medulla. ... The renal capsule is a tough fibrous layer surrounding the kidney and covered in a thick layer of perinephric adipose tissue. ... Transverse section of ureter. ... The renal pelvis represents the dilated proximal part of the ureter. ... Human kidneys viewed from behind with spine removed The renal arteries normally arise off the abdominal aorta and supply the kidneys with blood. ... Kidneys viewed from behind with spine removed The kidneys are bean-shaped excretory organs in vertebrates. ... The medial border of the kidney is concave in the center and convex toward either extremity; it is directed forward and a little downward. ... A calyx is a part in the kidney. ... Image File history File links Download high-resolution version (417x700, 70 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Ureter Wikipedia:Grays Anatomy images with missing articles 23 Renal medulla Renal pelvis Renal pyramids List of... Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ... It has been suggested that Renal anomalies and Renal plasma threshold be merged into this article or section. ... Renal pyramids are cone-shaped tissues of the kidney. ... The arcuate arteries of the kidney are vessels of the renal circulation. ... The glomerulus is a capillary bed found surrounded by the Bowmans capsule of the nephron in the vertebrate kidney. ... In the kidney, the loop of Henle is the portion of the nephron that leads from the proximal convoluted tubule to the distal convoluted tubule. ... The collecting duct system of the kidney consists of: The connecting tubule The cortical collecting duct The medullary collecting duct Categories: Urinary system ...


Additional images

External links

  • Medical Engineer - Renal Microcirculation
  • VetMed - Renal Medulla

  Results from FactBites:
 
nih kidney (2096 words)
The earliest and most common renal defect in sickle cell disease is hyposthenuria, which is expressed as an inability of the kidney to maximally concentrate the urine.
The abnormality of the renal medulla may render the patient hyporesponsive to "loop" or osmotic diuretic agents such as furosemide or mannitol, respectively.
Chronic renal failure occurs in a small percentage of patients with sickling disorders, and its prevalence in sickle cell disease appears to be greater than among the general African-American population.
Renal medulla - Wikipedia, the free encyclopedia (166 words)
The renal medulla is the innermost part of the kidney.
The renal medulla is split up into a number of sections, known as the renal pyramids.
Flow continues through the renal tubules, including the proximal tubule, the Loop of Henle, and finally leaves the kidney by means of the collecting duct, leading to the renal urethra.
  More results at FactBites »

 
 

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