In case naso pharynx children.. Increase the distance between Tube and patient

publisher :NIL NAM -April 13, 2017

In case naso pharynx children:
a- Reduce radiation
b- Increase radiation
c- Use grid
d- Increase the distance between Tube and patient

Reasons for not mixing the semen and urine in the urethra: The muscles behind the bladder prevent the urine from coming out during semen