What Prevents Backflow of Urine into the Ureters When the Pressure

question 86

Multiple Choice

What prevents backflow of urine into the ureters when the pressure inside the urinary bladder increases during micturition?

• A)the internal ureteral sphincter muscle
• B)high fluid pressure in the renal pelvis
• C)a physiological valve created at the distal ends of the ureters as they pass under the urinary bladder
• D)continued active peristalsis of the ureter during urination
• E)gravity

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