外尿道括约肌控制尿液流动

ernal urethral sphincter is a ring of skeletal muscle that surrounds the urethra.It plays a crucial role in voluntarily controlling the release of urine from the bladder.This sphincter remains contracted to prevent leakage and relaxes during urination.It is especially important in maintaining continence in both males and females.The brain sends signals to coordinate its function with bladder contractions.

光厂(VJshi)视频提供外尿道括约肌控制尿液流动视频素材下载，适用于细胞结构，药，受精卵，有丝分裂，减数分裂等主题的内容创作。

作者署名：Silver Place/Getty Images/华夏视觉