front 1 It is the urinary system that is primarily concerned with | back 1 the removal of nitrogenous wastes from the body |
front 2 kidneys maintain the balance of | back 2 electrolytes
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front 3 the major homeostatic organ | back 3 kidney |
front 4 the kidney excretes | back 4 toxins, metabolic wastes, & excess ions in the urine |
front 5 the kidney retains needed substances by | back 5 returning them to the blood |
front 6 the kidney regulates | back 6 blood volume, pH, & chemical composition |
front 7 Urinary System Organs | back 7 Kidneys, Urinary bladder, Ureters, Urethra |
front 8 Blood flows into the kidney through | back 8 renal arteries |
front 9 renal arteries | back 9 break up into the segmental arteries which enter the hilum |
front 10 segmental arteries | back 10 interlobar arteries (arcuate arteries)-- cortical radiate arteries, afferent arteries |
front 11 cortical radiate veins | back 11 arcuate veins -interlobar veins - renal vein- into the pelvis region |
front 12 nephrons form | back 12 urine |
front 13 two distinct capillary beds (two main parts of nephrons) | back 13 glomerulus
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front 14 glomerulus (capillary knot) | back 14 a tuft of capillaries |
front 15 renal tubule | back 15 begins as cup-shaped glomerular (Bowman's) capsule surrounding glomerulus |
front 16 the inner visceral wall creates a porous epithelial which is an important part of the | back 16 filtration membrane |
front 17 From the capsule the portions of the tubule are | back 17 -proximal convoluted tubule
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front 18 Proximal Convoluted tubule | back 18 receives filtrate from the glomerular capsule and is the site of tubular reabsorption |
front 19 distal convoluted duct leads into a | back 19 collecting duct (receives urine from many nephrons) |
front 20 __________ _____ give medullary pyramids their striped appearance | back 20 collecting ducts |
front 21 As collecting ducts approach the renal pelvis, they fuse together and empty the urine into the | back 21 minor calyces via the papillae of the pyramids |
front 22 the two capillary beds: | back 22 glomerulus
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front 23 Urine formation is the result of three processes: | back 23 filtration, reabsorption, and secretion |
front 24 filtration occurs in the | back 24 glomerulus |
front 25 reabsorption and secretion begin in the | back 25 proximal convoluted tubule |
front 26 Secretion involves materials either moving from the blood of the ___________ ___________ or from the tubular cells into the ________ | back 26 peritubular capillaries; filtrate |
front 27 chemical composition of urine | back 27 95% water and 5% solutes |
front 28 Blood composition depends on 3 major factors: | back 28 diet, cellular metabolism, and urinary output |
front 29 pH characteristics of urine | back 29 ranges from 4.5 to 8.0 with the average at 6.0
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front 30 specific gravity of urine is | back 30 slightly more than water, since it contains solutes |
front 31 1.001 dilute urine results when | back 31 one drinks lots of water, uses diuretics, suffers from diabetes insipid us, or chronic renal failure |
front 32 1.030 on the high end (concentrated) can result from | back 32 limited fluid intake, fever, kidney inflammation (pyelonephritis) or diabetes mellitus |
front 33 abnormal urinary constituents | back 33 glucose
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front 34 (Abnormal Urinary Constituents)
| back 34 high carb intake or diabetes mellitus, diabetes insipidus |
front 35 (Abnormal Urinary Constituents)
| back 35 abnormal permeability of the glomerular membrane
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front 36 (Abnormal Urinary Constituents)
| back 36 occur during starvation, or diets low in carbs |
front 37 (Abnormal Urinary Constituents)
| back 37 cystitis, irritation of the urinary tract organs
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front 38 (Abnormal Urinary Constituents)
| back 38 pus- inflammation of the urinary tract, cystitis, or pyelonephritis |
front 39 (Abnormal Urinary Constituents)
| back 39 glomerulonephritis, pyelonephritis |
front 40 kidney acts as a blood ______ then as a blood _________ | back 40 filter; processor |
front 41 ureters | back 41 drain urine from the kidneys and conduct it by peristalsis to the bladder for temporary storage |
front 42 urinary bladder | back 42 receives urine from ureters and discharges it via the urethra, stores it temporarily |
front 43 urethra | back 43 drains the bladder |
front 44 -the superficial kidney region, lighter in color
| back 44 kidney cortex |
front 45 -deep to the cortex, darker reddish-brown color
| back 45 medullary region |
front 46 -base of each faces toward the cortex
| back 46 medullary (renal) pyramids |
front 47 -areas of tissue that are more like the cortex in appearance
| back 47 renal columns |
front 48 -extends inward from hilum
| back 48 renal pelvis |
front 49 (Abnormal Urinary Constituents)
| back 49 diabetes mellitus, pyelonephritis |
front 50 4 characteristics of urine | back 50 color variations
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