Question

which sphincter present at the junction of urethra and urinary bladder is under voluntary control internal or external?​

Answer 1

Answer:

your answer!

Explanation:

Basically, the Urination is involuntary control by the smooth muscle internally spinchter and the externally by the Spinchter of skeletal muscle.

So,this is due due the Urethra is arises from the "Trigona Area" at the base of bladder