Gubernaculum

The gubernaculum is an embryonic structure that guides the descent of the gonads (both testes and ovaries).  In the male, the remnant of the gubernaculum is the gubernaculum testis or scrotal ligament, which tethers the inferior pole of the testis to the scrotum.  In females the remnant of the gubernaculum is the ovarian ligament and the round ligament of the uterus.