Which of the following is responcible for buffering.. bicarbonates

publisher :NIL NAM -May 21, 2017

Which of the following is responcible for buffering:
a- magnesium
b- chloride
c- bicarbonates
d- potassium
e- troponin

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