there is no reaction. the two systems wouldn't affect each other when your body goes into a flight or fight mode it releases hormones adn those hormones do many things but would have any direct affect on the urinary system.
The other name for the fight or flight response is the acute stress response.
The ALARM response
The fight or flight response is triggered by the release of stress hormones like adrenaline and cortisol in response to a perceived threat or danger. This response prepares the body to either confront the threat (fight) or escape from it (flight) in order to ensure survival.
The adrenal medulla is responsible for the fight-or-flight response. It releases a hormonal cascade that results in the secretion of epinephrine and nonrepinephrine.
Walter Cannon, a harvard physiologist, first investigated the fight or flight response in 1927.
Epinephrine
yes
yes
Adrenaline
It is the old fight or flight response.
The hormone that aids in the fight or flight response is adrenalin. Adrenalin is secreted by the adrenal medulla and makes the heart beat faster.