Quain's elements of anatomy . surface of the yolk and in a space immediately surrounding the ger-minal vesicle. The yolk granules, or yolk corpuscleSj as the larger may 734 THE OVUM BEFORE be termed, are chiefly spherical in form, and are of the most various sizes,fiom the minutest molecules up to the diameter of two oi T5\)oth ofan inch. They are difierent in composition from the clearer protoplasm,consisting mainly of protagon with fat and some other ingredients. Fig. 623.—Ovum of the cat ; highly MAGNIFIED. SEMI - DIAGRAMMATIC. () zp, zona pellucida, showing radiatedstru
Quain's elements of anatomy . surface of the yolk and in a space immediately surrounding the ger-minal vesicle. The yolk granules, or yolk corpuscleSj as the larger may 734 THE OVUM BEFORE be termed, are chiefly spherical in form, and are of the most various sizes,fiom the minutest molecules up to the diameter of two oi T5\)oth ofan inch. They are difierent in composition from the clearer protoplasm,consisting mainly of protagon with fat and some other ingredients. Fig. 623.—Ovum of the cat ; highly MAGNIFIED. SEMI - DIAGRAMMATIC. () zp, zona pellucida, showing radiatedstructure ; vi, vitellus, round whicli adelicate membrane was seen ; gv, germi-nal vesicle ; gs, germinal spot. They are enclosed in the substanceof the more homogeneous proto-plasm. The latter presents in theliving state aU the characters ofthis substance, sometimes exhibit-ing the finely radiated linear orfibrillar structure which belongsto its growing condition, and pos-sessing the amoeboid contractileproperty which is known to cha-racterise most of its Vesicle.—While the protoplasm and vitelline granulesconstitute the main part of the ceU-substance of the ovum, the germinalves
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Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
