The migration of sperm into the uterus, on their way to contact the ovum, is facilitated by the secretion of _______ into the _______.
A) progesterone : uterine tube
B) an alkaline solution : uterine tube
C) estrogen : uterine tube
D) an acidic solution : cervical canal
E) a thin mucus : cervical canal

Question

Quizplus · Accepted Answer

The secretion of a thin mucus into the cervical canal facilitates the migration of sperm into the uterus, as it provides a less viscous medium through which sperm can more easily travel.

The Migration of Sperm into the Uterus, on Their Way