And that part of the urethra is called the prostatic urethra.

这一段被叫做尿道前列腺部。

Last, is the transitional zone, which contains around 5% of the glandular tissue as well as a portion of the prostatic urethra.

最后一个区域是移行区，含5%的腺体组织和部分的尿道前列腺部。

Moving inward, the next section is the central zone which contains about 25% of the glandular tissue as well as the ejaculatory ducts that join with the prostatic urethra.

再向内的一个区是中央区，腺体组织的25%和射精管位于此处；射精管在尿道前列腺部走行。