Question

Urethra: It is a ......... struc-
ture arising from urinary blad-
der and opening to the exterior
of the body. There are .........
urethral sphincters between uri-
nary 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

Urethra : It is a tubular structure arising from urinary bladder and opening to the exterior of the body.

There are two urethral sphincters between urinary bladder and urethra.

a. Internal sphincter : Made up

of smooth muscles, involuntary

in nature.

b. External sphincter : Made up

of striated muscles, voluntary

in nature.

If this valve is not functioning

properly during inflammation

of bladder, it can lead to kidney

infection.

Answer 2

Answer:

1.tubular

2.two

3.smooth

4.striated