The discharge of urine from the bladder. It is brought about by reflex contraction of the detrusor muscle after voluntary relaxation of the sphincter muscle at the junction of the bladder with the urethra.
科学参考收录了60776条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。