reflex detrusor contraction

re·flex de·tru·sor con·trac·tion

normal coordinated function of the bladder with sustained contraction of the bladder matched by simultaneous relaxation of the sphincteric outlet mechanisms to empty the bladder.
References in periodicals archive ?
This is evident where there is a spinal cord injury above the sacral level: once the initial spinal shock has resolved, fitting of the bladder results in reflex detrusor contraction and emptying.