HISTOLOGY
URINARY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the dilated top portion of the ureter
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millions of these are in each kidney to filter unwanted materials from blood
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a long, narrow tube extending from the kidney for the passage of urine
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None of the above
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Detailed explanation-1: -Hydronephrosis is defined as dilatation and distension of the renal collecting system of one or both kidneys due to obstruction of urine outflow distal to the renal pelvis (i.e., ureter, urinary bladder, and urethra). Dilation of the ureter due to obstruction of urine outflow is called hydroureter.
Detailed explanation-2: -The renal pelvis is the area in your baby’s kidney where urine collects. If the renal pelvis looks wider (more dilated) than usual, the sonographer will measure it. If it measures over 5 millimetres (mm), this is classed as dilated. RPD can be seen in just one kidney (unilateral) or both kidneys (bilateral).
Detailed explanation-3: -Hydronephrosis occurs when there is either a blockage of the outflow of urine, or reverse flow of urine already in the bladder (called reflux) that can cause the renal pelvis to become enlarged.