Sperm in the Female Tract - Anatomy & Physiology

Overview

There is immediate retrograde loss at the entrance to the cervix/uterus with phagocytosis by leukocytes.
In the cervix, sperm must travel through privileged pathways. This serves to eliminate non-motile sprem and remove some abnormalities.
In the Uterus, capacitation is initiated with some phagocytosis occuring.
In the Oviduct, capacitation is completed and sperm show hyperactive motility.
At the Uterotubal Junction, the acrosome reaction occurs and the spermatozoon penetrated the oocyte in fertilization with the formation of male and female pronuclei.