Explain the egg membranes of human ovum.

Options

A. corona radiata, zona pellucida and vitelline membrane
B. zona radiata
C. zona pellucida
D. chorion.

Answer

A

Explanation

The outermost membranous cover to the ovum at ovulation is corona radiata. It is formed by follicular cells. Inner to corona radiata is zona pelluicda, which is made up of three different glycoproteins secreted by the ovum itself.