Question

State the function of the sphincter muscle. Name the two types of sphincter muscles. Where are these located? [3 MARKS]

Answer 1

Function: 1 Mark
Types: 1 Mark
Location: 1 Mark

Urine is expelled from the bladder as a result of the simultaneous contraction of the bladder and the relaxation of the sphincter muscles, under impulse from the nervous system.

The two types of sphincter muscles are:
(i) Bladder Sphincter: It is located at the exit of the bladder.
(ii) Urethral Sphincter: It is located below the bladder sphincter at the exit of the urethra.