corona radiata


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corona

 [kŏ-ro´nah] (pl. coro´nae, coronas) (L.)
crown; in anatomic nomenclature, an eminence or encircling structure that resembles a crown. adj., adj cor´onal.
corona radia´ta
1. the radiating crown of projection fibers passing from the internal capsule to every part of the cerebral cortex.
2. an investing layer of radially elongated follicle cells surrounding the zona pellucida of the ovum; it accompanies the oocyte during ovulation.

co·ro·na ra·di·a·ta

1. a fan-shaped fiber mass on the white matter (substance) of the cerebral cortex, composed of the widely radiating fibers of the internal capsule;
2. a single layer of columnar follicular cells derived from the cumulus oophorus that anchor on the zona pellucida of the oocyte in a maturing ovarian follicle.
3. a pattern of fine lines radiating around a solitary pulmonary nodule, passing through a zone of relative lower opacity, as seen radiologically.
Synonym(s): radiate crown

corona radiata

co·ro·na ra·di·a·ta

(kŏ-rō'nă rā-dē-ā'tă) [TA]
1. A fan-shaped fiber mass on the white matter of the cerebral cortex, composed of the widely radiating fibers of the internal capsule.
2. A single layer of columnar cells derived from the cumulus oophorus, which anchor on the pellucid zone of the oocyte in a secondary follicle.
Synonym(s): radiate crown.

corona radiata

1. The radiating ‘crown’ of nerve fibre bundles running up from the INTERNAL CAPSULE of the brain to all parts of the CORTEX.
2. A layer of cells radiating outwards from the maturing OVUM and which persist for a time after ovulation.

corona

pl. coronae [L.] a crown; a crownlike eminence or encircling structure.

glans corona
the prominent, denticulated margin of the glans penis in the stallion.
corona radiata
1. the radiating crown of projection fibers passing from the internal capsule to every part of the cerebral cortex.
2. an investing layer of radially elongated follicle cells surrounding the zona pellucida of the ovum.