The structures of the testis睾丸的结构 Testis sends numerous fibrous septules into the gland,dividing it into 100~ 200 testicular lobules睾丸小叶that contain2~4 contorted seminiferous tubules精曲小管→straight seminiferous tubules精直小管→rete testis睾丸网 输精管 *-后缘 附睾头 睾丸输出小管 睾丸纵膈 睾丸小叶- -睾丸网 睾丸小隔- 精直小管 生精小管 白膜 -附睾体 「脏层 睾丸鞘膜 儿壁层- 附睾尾 睾丸鞘膜腔
Testis sends numerous fibrous septules into the gland, dividing it into 100～ 200 testicular lobules睾丸小叶 that contain 2～4 contorted seminiferous tubules 精曲小管→ straight seminiferous tubules 精直小管→rete testis 睾丸网 The structures of the testis 睾丸的结构
Covering of the testis睾丸的被膜 1. 精索外筋膜→腹外斜肌腱膜 2.提睾肌→自腹内斜肌与腹外斜肌纤维 3.精索内筋膜→腹横筋膜的延续 4.睾丸鞘膜+自腹膜，分壁层与脏层 精索外筋膜 腹股沟部 提睾肌- 膜 精索内筋膜 输精管精索部 附 精索 阴囊壁 「皮肤 睾丸 肉膜 睾丸九部 脏层 睾丸鞘膜 壁层1
Covering of the testis 睾丸的被膜 1. 精索外筋膜→腹外斜肌腱膜 2. 提睾肌→自腹内斜肌与腹外斜肌纤维 3. 精索内筋膜→腹横筋膜的延续 4. 睾丸鞘膜→自腹膜，分壁层与脏层
The descend of testis睾丸的下降 Testes follow the"path of descent"from high in the posterior fetal abdomen to the inguinal ring and beyond to the inguinal canal and into the scrotum.In most cases(97%ful-term足月，70%preterm早产)，both testes have descended by birth.In most other cases,only one testis fails to descend (cryptorchidism)and that will probably express itself within a year. Internal(deep)ring External(superficlal)ring Dartos External spermadic fascia Cremaster muscle- Internal spermadic fascla- Tunica vaginalis(parictal) Undescended Testes(Cryptorchidism) 更N Tunica vaginalis(visceral) a testis that did not descend all the First Second hometown,sperm production way into the scrotum
Testes follow the “path of descent” from high in the posterior fetal abdomen to the inguinal ring and beyond to the inguinal canal and into the scrotum. In most cases (97% full-term足月, 70% preterm早产), both testes have descended by birth. In most other cases, only one testis fails to descend (cryptorchidism) and that will probably express itself within a year. The descend of testis 睾丸的下降 Undescended Testes (Cryptorchidism) - a testis that did not descend all the way into the scrotum First & Second hometown,sperm production
Genital ducts生殖管道 1. Epididymis附睾 输尿管- 2. Ductus deferens输精管 3. Djaculatory ducts射精管 膀胱 精囊 前列腺 4. Jrethra尿道 尿道球腺 阴茎 输精管 “附睾 -睾丸
Genital ducts 生殖管道 1. Epididymis 附睾 2. Ductus deferens 输精管 3. Djaculatory ducts 射精管 4. Urethra 尿道
Genital ducts-epididymis附睾 Shape:oval shaped 21days Testis,epididymis,and vas (ductus)deferens Head:头 testicular artery vas(ductus)deferens pampiniform plexus Body:体 head of epididymis ody of epididymis shown lifted away rom testis) Tail:尾 Position efferent ductules Located on sup.extremity post.border of testis septa Function bules The site of accumulation tall of epididymis tunica albuginea 2008 Enoyclopadia Britannica,Inc storage of sperm Efferent ductules connect between testis and epididymis
Genital ducts- epididymis 附 睾 Shape：oval shaped 21days Head：头 Body：体 Tail：尾 Position Located on sup. extremity & post. border of testis Function The site of accumulation & storage of sperm Efferent ductules connect between testis and epididymis