Publisher Summary This chapter discusses the hormonal control of ovoimplantation. The
mammalian ovum undergoes several “trials” after its release from the ovarian follicule. The
ovum must be fertilized as soon as possible after release otherwise it will degenerate within
a few hours. It must then migrate or be transported through the oviduct within a definite
interval, for if it arrives either too early or too late into the uterus it will encounter a hostile
(toxic) environment. During the period of oviduct transit, the ovum must cleave and reach the …