Question

Let's say you are perfectly healthy, at optimum homeostasis,

and you went to void in the bathroom, you got nervous because

there's a strange woman in there standing just watching causing you to

not be able to void but instead go into your sympathetic or fight/fight mode?

What does voiding have to do with flight/fight?

Answer 1

Voidind is regulated by autonomic nervous system.Autonomic nervous system consists of sympathetic and parasympathetic nervous system.The effect of these two systems on voiding can be understood here as follows:

Parasympathetic system: These consists of muscarinic receptors, M3, present in the detrusor muscles of urinary bladder. When stimulated,they cause detrusor muscle contraction.This cause voiding.

Sympathetic system: ​​​​​​ This consists of beta receptors present in the detrusor muscles.They decrease detrusor contraction and cause their relaxation.Also alpha-1 receptors are present in the bladder sphincter.It causes the sphincter constriction.Thus sympathetic nervous system inhibit voiding.

In this question,the person goes into flight/fight mode.This means the sympathetic nervous system is activated,this inhibits voiding.