Where Is Morula Formed?

Morula is formed in the upper portion of oviduct i.e. isthmus. The haploid nucleus of the sperms and that of the ovum fuse together to form a diploid zygote.

Where does morula formation occur?

A morula is usually produced in those species the eggs of which contain little yolk and, consequently, undergo complete cleavage. Those blastomeres on the surface of the morula give rise to extra-embryonic parts of the embryo. The cells of the interior, the inner cell mass, develop into the embryo proper.

What is morula formed in humans?

Morula is defined as a 16-cells containing early-stage embryo that formed from zygote by mitotic division. It looks like a solid ball, which is contained in zona pellucida (plasma membrane of oocyte). In humans, morula is formed at fallopian tube, after 3-4 days of fertilization.