Many drugs used during surgery can interfere with the urination process. in these cases, the excretory system is not damaged, but the correct signals are not being sent to activate it. what system is most likely malfunctioning?

The nervous system is the answer

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.