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colleen colleen
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Posts: 17077
10 years ago
Contrast the roles of the ureters and urethra in the urinary system.
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Staff Member
Educator
10 years ago
The ureters are tubes that connect the kidneys to the bladder. Each ureter transports urine to the bladder. Both gravity and peristalsis aid in the movement of urine.

The urethra is a tube that transports urine from the bladder to the outside of the body. The passage of urine from the bladder into the urethra is controlled by two sphincters: the internal, involuntary sphincter and the external, voluntary sphincter.
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