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Ureteral calculi, for one.
Because of the one-way valve system of the ureters, which connect the kidneys to the bladder. If these ureter valves do not work properly, they can cause urine to back-flow into the ureters and toward the kidneys.
From both kidney, you have ureters going to the urinary bladder. Urine is produced drop by drop and collected in the urinary bladder. This urine is transferred to the bladder by pair of ureters, one each, from both kidney. This long passage help to prevent the frequent bladder infection from ascending to kidney.
Urine leaves the kidneys through the ureters which are tubes that carry the urine to the bladder. The bladder stores the urine until it is expelled from the body through the urethra.
Bladder
The bladder.
If the Urine is in the bladder and does not flow, you put a catheter through the urethra.
While emptying the bladder, the last step is the emptying of the bladder via the urethra. The urethra sends urine out of the bladder while preventing the back-flow of the urine using a back-flow valve mechanism.
The flow of urine begins in the kidneys, where it is produced through the filtration of blood. From the kidneys, urine travels down the ureters to the bladder, where it is stored until ready for elimination. When the bladder is full, urine is expelled from the body through the urethra during urination.
A urine flow test can indicate problems in bladder function, such as an obstruction, that will need further tests to diagnose.
The internal urethral sphincter is a smooth muscle located at the neck of the urinary bladder and surrounds the opening of the urethra. It helps in controlling the flow of urine from the bladder to the urethra.
Kidneys, ureters, bladder, urethra
The job of the Uriter is to handle the flow of urine from the Kidney's to the bladder.
Because of the one-way valve system of the ureters, which connect the kidneys to the bladder. If these ureter valves do not work properly, they can cause urine to back-flow into the ureters and toward the kidneys.
The bladder eliminates waste by storing urine produced by the kidneys until it is ready to be expelled from the body. When the bladder is full, nerve signals trigger the muscular walls of the bladder to contract, allowing urine to flow out through the urethra.
Urinary bladder mainly contains two types of musces 1. Smooth muscles, forming the wall of the bladder ( Detrusor muscle ) and the internal urethral sphincter ( which controls the flow of urine which is involuntary ), and 2. Skeletal muscle, which forms the external urethral sphicter with which we can control the flow of urine.. ( voluntary control of flow )
AlkaptonuriaVesicoureteral reflux is the backflow of urine into the kidneys.
The bladder stores urine before it is urinated out of the body.