ovulogenous

(0-vu-loj’en-us). veloping from an ovule or ovum. ovum (o’vum) [Latin for egg]. 1. An egg The female reproductive cell which, after Sertill. zati on, develops into a new member of the same species. The human ovum is a round cell, about The of an inch in diameter. It consists of protoplasm (vitellus, or yolk) inclosed by ἃ cell-wall, which consists of two layers, an inner one (son a pellucid a, zona radiata), and an outer, thin one (vitelline membrane). There is a large nucleus (germinal vesicle), within which is a nucleolus (germinal spot). alecithal 0., one which has very little or no food-yolk. apoplectic o., one which is the seat of an extravasation of blood. blighted o., onc in which development becomes arrested after impregnation. centrolecithal o., one in which the formative yolk is arranged in a regular manner around the entire ovum. holoblastic 0., one in which the food-yolk is scanty and is blended with the formative yolk. leci- 1 ο. Same as meroblastic o. male o., a cell-form seen in the diverticula of the seminiferous tubules: supposed to be an imperfect spermatozoin. Mall’s o., an impregnated ovum about thirteen days old; also one twenty-six days old. meroblastic 0., one with a large and nearly inactive food-yolk. permanent ο., a complete ovum ready for fertilization. Peters Ο., an ovum which was obtained five or six days after impregnation. primitive o., primordial Ο., any egg-cell which eventually becomes an The globulin of A glycoprotein from the The vitellin of egg- Producing or de-