A&P2 Test 5 #4 of Urniary System-Nephrons
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| Trigone is a point of referance: | Created by 2 uretheral openings & urethra
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| Nephrons have:(3) | Renal Tubules, Glomerulus & Glomerular Capsule
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| RENAL TUBULES -(4) are: | PROXIMAL CONVALUTED, LOOP OF HENLE, DISTAL CONVOLUTED & COLLECTING TUBULES
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| glomerulus is a knot of: | capillaries
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| GLOMERULAR CAPSULE : | surrounds the capilary knot
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| RENAL CAPSULE aka CORPUSCLE refers to: | the glomerular capsule, plus its capillary tuft
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| RENAL PYRAMIDS are structures | located in the medullary layer
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| Renal Pyramids are formed from | tubules & blood vessels assoc w/nephrons
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| collecting tubules go thru pyramids: | into MINOR CALYCES
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| MINOR CALYCES empty into | MAJOR CALYCES, which in turn empty into the renal pelvis
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| Each nephron is assoc with a: | GLOMERULAR CAPILLARY BED
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| The glomerular capillary bed produces | filterate and a PERITUBULAR BED
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| The PERITUBULAR BED | reclaims most of the filterate
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| Afferent arterioles from the: | interlobular arteries feed into the nephrons glomerular tuft.
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| Two types of nephrons are; | cortical and juxtamedullary
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| Which type nephron is most #"s? | cortical
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| CORTICAL NEPHRON has its | glomerulus located in the upper cortical zone
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| The cortical nephron rarely | penetrates the medulla
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| PERITUBULAR CAPILLARIES are the: | capillaries of the cortical nephron
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| JUXTAMEDULLARY NEPHRON has its | glomerulus loc close to the cortico-medullary junction
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| Peritubular capillaries of JG nephrons: | include an additional capillary network called the VASA RECTA
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| A nephron starts as a double: | walled cup called the glomerular capsule
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| Glomerular capsule is in the | cortex
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| Name outer wall of nephron capsule: | called the PARIETAL LAYER
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| The perietal layer consists of: | simple squamous epithelium
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| CAPSULAR SPACE seperates | parietal layer from inner layer
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| Inner layer of nephron capsule is: | VISCERAL LAYER
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| VISCERAL LAYER consists: | of epithelial cells called PODOCYTES
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| Inner layer of nephron surrounds a | capillary network called the glomerulus
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| ENDOTHELIAL-CAPSULAR MEMBRANE formed: | from visceral layer of capsule & endothelium of the glomerulus
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| The endothelial-capsular membrane: | filters water and solutes in the blood
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| Apx. 1200 ml of blood: | pass thru kidneys each minute
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Created by:
Jean and Study Pals