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Urethra : It is a ......... struc-ture arising from urinary blad-der and opening to the exteriorof the body. There areurethral sphincters between uri-nary bladder and urethra.a. Internal sphincter : Made upof ............ muscles, involuntaryin nature.b. External sphincter : Made upof ............. muscles, voluntaryin nature.If this valve is not functioningproperly during inflammationof bladder, it can lead to kidneyinfection. |
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Answer» INVOLUNTARY MUSCLES...... |
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