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Glomerulus, Loop of Henle, Kidney

Glomerulus, Loop of Henle, Kidney

 

Glomerulus, Loop of Henle, Kidney
Image Number: 118-108
Dimensions: 900 X 450
Media Used: Digital Photoshop
Formats Available: Whatever required
Title: Glomerulus, Loop of Henle, Kidney
Customization: Available
Image Description:  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.

© Catherine Twomey
Portfolio
Artist/Company Bio:
Professional yet creative. Detailed yet capable of understanding and illustrating the most complex concept in the most straightforward way. Deadline oriented and accurate. Producer of some of the most beautifully colored and rendered work found today. Catherine Twomey is a Board Certified member of the Association of Medical Illustrators and a Founding member of the Illustrators Partnership of America. She has had her own successful business creating art for science and the healthcare industry for over 20 years. She has received many Awards of Excellence from the RX/Art Directors Club in New York City, the Association of Medical Illustrators and numerous other venues. Estimates are provided without charge. The stock section of Indexed Visuals carries 75 of Catherine's images available for licensing. Most images are produced in Photoshop layers, making it possible to modify images to fit your needs. Catherine's website at http://www.artistsart.com provides more samples and information. Catherine is a graduate of the Medical Illustration/Biomedical Visualization Program of the University of Illinois, B.S. in Biocommunication Arts/Medical Illustration, including U. of I. Medical School Sciences: human gross anatomy, physiology, neuroanatomy, histology, embryology, pathology. She also has a Masters Degree from Northern Illinois University Graduate School, M.S. in Art Education, Summa Cum Laude. Catherine provides her services to biotech and pharmaceutical companies, attorneys, major medical publishers of textbooks and journals, and consumer publications. Her illustrations have appeared worldwide, from every WalMart to the NBC Home show to the largest medical convention, RSNA (Radiogical Society of North America).

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Additional Related Images to:
Glomerulus, Loop of Henle, Kidney


  View Image #118-108 Glomerulus, Loop of Henle, Kidney #118-108  
 | Related Images [Click Here]
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 #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 #101-102 Kidney Nephron #101-102  
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Kidney Nephron. Shows the anatomy of the nephron of the kidney. Included glomerulus, proximal and distal convoluted tubule and blood supply. Loop of henle included but not shown here.


  View Image #111-216 Kidney: Blood Supply and Internal Structure #111-216  
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Blood supply to both kidneys is shown, with the left kidney in cross section to show the internal structures. Adrenal glands are also present. Loop of Henle and nephron with glomerulus dramatically spills out toward viewer in the foreground. Commercial requests only. No classroom or student inquiries will be answered. Minimum license fee is $300. Copyright Teri J. McDermott

 
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