bulbocavernosus muscle

例句：

1. 1.The penis cavernous muscle is responsible for the sensation of erection.
   阴茎海绵体肌肉负责勃起的感觉。
2. 2.During sexual activity, the penis cavernous muscle contracts to facilitate ejaculation.
   在性行为中，阴茎海绵体肌肉收缩以促进射精。
3. 3.The penis cavernous muscle is a sensitive part of the body that can be affected by various diseases.
   阴茎海绵体肌肉是身体敏感的部分，可以受到各种疾病的侵害。