34.下列何者與胎兒之睪丸下降(descent of the testis)無關?(A)睪丸下方引帶(gubernaculum)的縮短 (B)提睪肌(cremasteric muscle)的收縮 (C
問題詳情
34.下列何者與胎兒之睪丸下降(descent of the testis)無關? (A)睪丸下方引帶(gubernaculum)的縮短 (B)提睪肌(cremasteric muscle)的收縮 (C)腹腔內部壓力(intra-abdominal pressure)的增加 (D)胎兒體內睪固酮(testosterone)的增加