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Renin Release by Kidney Glomerulus

Renin Release by Kidney Glomerulus

 

Renin Release by Kidney Glomerulus
Image Number: 103-372
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Title: Renin Release by Kidney Glomerulus
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Image Description:  Afferent arteries from the glomerulus release renin, an enzyme that acts on circulating angiotensinogen to form angiotensin I. ACE enzyme in the vascular endothelium converts AI to angiotensin II.

© Peg Gerrity, CMI
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 I work in layers so that any image can be modified to fit your layout or animation. All images can be altered and various elements highlighted!

For a searchable website of all my images, please visit www.peggerrity.com

Board Certified Medical Illustrator Fellow, Association of Medical Illustrators
Master of Associated Medical Sciences, Biomedical Illustration. University of Illinois at Chicago, 1989.
Bachelor of Arts, Drawing and Painting. The University of Alaska, 1986.
Bachelor of Science, Biomedical Science. Texas A&M University, 1983.

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Additional Related Images to:
Renin Release by Kidney Glomerulus

  View Image #103-372 Renin Release by Kidney Glomerulus #103-372  
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Afferent arteries from the glomerulus release renin, an enzyme that acts on circulating angiotensinogen to form angiotensin I. ACE enzyme in the vascular endothelium converts AI to angiotensin II.
  View Image #118-057 Kidney: Glomerulus #118-057  
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Kidney: Glomerulus Function - Specialized cells of the kidney and glomerulus. Shows red blood cells moving through the filtration system of the kidney. Includes loop of Henle, juxtaglomerular cells, Bowman's capsule, membranes and podocytes.
  View Image #118-105 Kidney, Anatomy With Glomerulus #118-105  
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Kidney, Anatomy With Glomerulus. Parenchyma, the solid part of the kidney, where the process of waste excretion takes place. Cortex—the outer layer of the parenchyma consisting of connective tissue. Glomeruli—convoluted tubules where filtration is performed. Medulla—area of the kidney where filtration and concentration of wastes takes place, Henle’s loops, pyramids of converging tubules. Nephron—basic functional unit of kidney. Calyx (plural calyces)—collecting area for urine within kidney before it is passed through to renal pelvis. Capsule—dense fibrous covering of kidney. Pelvis—central collecting system of kidney. Hilum—area of convergence of the renal collecting system, ureter, renal artery and vein. Ureteropelvic junction—point at which the renal pelvis becomes the ureter. Gerota’s fascia—layer of connective tissue between the kidneys and the psoas muscles and the lumbar spine. Perinephric fat—layer of fat surrounding kidney outside of capsule. Perihilar fat—layer of fat in the area of the renal hilum.
  View Image #118-108 Glomerulus, Loop of Henle, Kidney #118-108  
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Glomerulus, Loop of Henle, Kidney. The kidneys are "bean-shaped" organs, and have a concave side facing inwards (medially). On this medial aspect of each kidney is an opening, called the hilum, which admits the renal artery, the renal vein, nerves, and the ureter. The outer portion of the kidney is called the renal cortex, which sits directly beneath the kidney's loose connective tissue/fibrous capsule. Deep to the cortex lies the renal medulla, which is divided into 10-20 renal pyramids in humans. Each pyramid together with the associated overlying cortex forms a renal lobe. The tip of each pyramid (called a papilla) empties into a calyx, and the calices empty into the renal pelvis. The pelvis transmits urine to the urinary bladder via the ureter. People are born with two kidneys but are able to live with only one. Each kidney receives its blood supply from the renal artery, two of which branch from the abdominal aorta. Upon entering the hilum of the kidney, the renal artery divides into smaller interlobar arteries situated between the renal papillae. At the outer medulla, the interlobar arteries branch into arcuate arteries, which course along the border between the renal medulla and cortex, giving off still smaller branches, the cortical radial arteries (sometimes called interlobular arteries). Branching off these cortical arteries are the afferent arterioles supplying the glomerular capillaries, which drain into efferent arterioles. Efferent arterioles divide into peritubular capillaries that provide an extensive blood supply to the cortex. Blood from these capillaries collects in renal venules and leaves the kidney via the renal vein. Efferent arterioles of glomeruli closest to the medulla (those that belong to juxtamedullary nephrons) send branches into the medulla, forming the vasa recta. Blood supply is intimately linked to blood pressure. The basic functional unit of the kidney is the nephron, of which there are more than a million within the cortex and medulla of each normal adult human kidney. Nephrons regulate water and solute within the cortex and medulla of each normal adult human kidney. Nephrons regulate water and soluble matter (especially electrolytes) in the body by first filtering the blood under pressure, and then reabsorbing some necessary fluid and molecules back into the blood while secreting other, unneeded molecules. Reabsorption and secretion are accomplished with both cotransport and countertransport mechanisms established in the nephrons and associated collecting ducts. The fluid flows from the nephron into the collecting duct system. This segment of the nephron is crucial to the process of water conservation by the organism.
  View Image #121-012 Kidney Failure #121-012  
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Glomerulus and tubules undergoing kidney failure.
 
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