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sperm duct | ejaculatory duct 输精管| 射精管
Ejaculatory duct obstruction is a rare but important cause of male infertility. 射精管梗阻是一种罕见现象,但却是男性不育的重要原因。
Before entering the ejaculatory ducts, the sperm cells have only a limited capacity of moving by themselves. 精子在进入射精管之前，仅有有限的运动能力。
The ejaculatory duct was seen as a hypoechoic structure and visible in only 33% (14/43) of patients. 射精管为一低回音结构，且只能在33%25之受检者观察到。
Objective: To investigate the characteristics of diagnosis and treatment of iatrogenic ejaculatory duct obstruction following prostatic hyperthermia. 目的:探讨前列腺热疗后医源性射精管梗阻的诊断及治疗特点。
Objective:To investigate the treatment of cystis vesiculae seminalis induced by the obstruction of the distal end of the ejaculatory duct. 目的:进一步探讨由于射精管梗阻引起的精囊囊肿的治疗。
The male body has sperm ducts , seminal vesicles , a prostate etc. 男性有输精管道、精囊腺和睾丸等等。
Both eupyrene and apyrene sperms in seminal vesicle and ejaculatory duct were surrounded with many granules with high-electron density,which may be secreted from accessory gland. 在贮精囊和射精管腔内二种精子四周均分布有许多电子致密颗粒物，它们可能由附腺分泌而来。
The male reproductive system is distinguished by a pair of testes,a pair of vas deferens,a pair of male accessory glands,one ejaculatory duct and copulatory organ. 雄性生殖系统由一对睾丸、一对输精管、一对附腺、射精管和交配器组成。
The male reproductive system is distinguished by a pair of testes, a pair of vas deferens, a pair of male accessory glands, one ejaculatory duct and copulatory organ. 雄性生殖系统由一对睾丸、一对输精管、一对附腺、射精管和交配器组成。
Ejaculatory duct obstruction. 射精管梗阻。
congenital absence of ejaculatory duct 先天性射精管缺失
congenital atresia of ejaculatory duct 先天性射精管闭锁
It is traversed by the urethra as well as the two ejaculatory ducts described earlier. 其实质有尿道和早前描述过的射精管穿过。
These ejaculatory ducts run inside the prostate gland and there join the urethra. 射精管穿入前列腺，在这里汇入尿道。
The male sperm fertilizes the female egg. 雄性的精子使雌性的卵子受精。
Diagnosis and Management of Ejaculatory Duct Obstruction 射精管梗阻的诊断与治疗
Less than 7 2 in the ejaculatory duct obstruction or urine contamination; 小于7 2见于射精管梗阻或受尿液污染；
This is the largest sperm whale in the world. 这是世界上最大的一头巨头鲸。
Keywords Seminal vesicle B ultrasound Ejaculatory duct Obstructive azoospermia; 关键词精囊腺;B超;射精管;梗阻性无精子症;