. The American journal of anatomy. e velumtransversum. At this stageit i* a simple evagination of , . ,, ,..,.. Fig. 1. Embryo of mm. Harvard Embryologicai the brain wall, and is identl- Collection. Sagittal series 477. Section 110. X cal with it in structure. It contains a large cavity which communicates with that of the forebrain. Fig. 2 is a most fortunate median sagittal section of a in which the above-mentioned subdivisions of the forebrain maybe readily identified. The posterior commissure is at this stage plainlyvisible. A well-developed epiphysis is present. Thi
. The American journal of anatomy. e velumtransversum. At this stageit i* a simple evagination of , . ,, ,..,.. Fig. 1. Embryo of mm. Harvard Embryologicai the brain wall, and is identl- Collection. Sagittal series 477. Section 110. X cal with it in structure. It contains a large cavity which communicates with that of the forebrain. Fig. 2 is a most fortunate median sagittal section of a in which the above-mentioned subdivisions of the forebrain maybe readily identified. The posterior commissure is at this stage plainlyvisible. A well-developed epiphysis is present. This is the earlieststage at which I have been able to identify the superior lies in its characteristic position, within the ectodermic brain wall,anterior to the opening of the cavity of the epiphysis. We will returnagain to this region, and will study it more closely with a higherpower. It is evident on comparing Figs. 1 and 2 that the posterior velararch has now totally changed its shape. In Fig. 1, it forms a 16 The Paraphysis in the Common Fowl
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1901
