Question

Urethra : It is a ......... struc-ture arising from urinary blad-der and opening to the exterior of the body. There urethral sphincters between urinary bladder and urethra.a. Internal sphincter : Made up of ............ muscles, involuntary in nature.b. External sphincter : Made up of ............. muscles, voluntary in nature.If this valve is not functioning properly during inflammation of bladder, it can lead to kidney infection.​

Answer 1

Answer:

urethra : tube-like

sphincter : smooth muscles

external sphincter : strait muscles