Tags: Anatomical Structure.
For the structure in neuroanatomy see Corona radiataThe corona radiata is the innermost layer of the cumulus oophorus and is directly adjacent to the zona pellucida the outer protective layer of the ovum. Its main purpose in many animals is to supply vital proteins to the cell.[citation needed] It is formed by follicle cells adhering to the oocyte before it leaves the ovarian follicle and originates from the squamous granulosa cells present at the primordial stage of follicular development.
