A layer of cells surrounding an egg at ovulation; a sperm must penetrate this layer to fertilize the egg
kah-RONE-ah ray-dee-A-tah Layer of cells around the oocyte. 217
(koh-RO-naw ra-dee-AW-tah) Several layers of follicle cells that form a protective mantle around the secondary oocyte.
corona (crown or garland), radiata (radiating).
Layer of follicle cells of cumulus oophorus remaining attached to zona pellucida of oocyte after ovulation. Also called granulosa cells. ( More? Week 1 Notes)
Cells of cumulus oophorus that immediately surround the zona pellucida. Upon ovulation these cells accompany the oocyte.
corona - a crown]. A layer of protective follicle cells derived from the cumulus oophorus surrounding the zona pellucida of an oocyte after ovulation.
Cellular layer surrounding the mature oocyte.
Cell layer surrounding oocyte
In neuroanatomy, the corona radiata refers to the descending bundle (or sheet) of axons that are involved with finely coordinated movement. The corona radiata is associated with the corticospinal tract.
The corona radiata surround an ovum or unfertilized egg cell, and consist of two or three strata (layers) of follicular cells. They are attached to the outer protective layer of the ovum, the zona pellucida, and their main purpose in many animals is to supply vital proteins to the cell. They appear at ovulation, but may disappear eventually after fertilization.
