. Journal of anatomy. Fig. 16,—Stage IV. Trichosiirus vulpeciila(XII. 02). Transverse section throughhypophysis. SI. 5-2-8. , distal lobe; Dien., diencephalic floor; L.,lumen; 51., mesenchyme ; , iiroxinial lohe;., Seessels Fig. 17.—Stage IV. Trichosuriis vulpccula(XII. A. 02). Longitudinal sectionthrough hypophysis. SI. 8-3-2. D., duct of Rathkes pouch; , distal lobe; I.,infundibular recess; M., mesenchyme; ,oral plate ; T E., transitory entodernial thicken-ing; , proximal Ilbe; ,Seessels pocket. is carried inwards and forms a small diverticulum on the pos
. Journal of anatomy. Fig. 16,—Stage IV. Trichosiirus vulpeciila(XII. 02). Transverse section throughhypophysis. SI. 5-2-8. , distal lobe; Dien., diencephalic floor; L.,lumen; 51., mesenchyme ; , iiroxinial lohe;., Seessels Fig. 17.—Stage IV. Trichosuriis vulpccula(XII. A. 02). Longitudinal sectionthrough hypophysis. SI. 8-3-2. D., duct of Rathkes pouch; , distal lobe; I.,infundibular recess; M., mesenchyme; ,oral plate ; T E., transitory entodernial thicken-ing; , proximal Ilbe; ,Seessels pocket. is carried inwards and forms a small diverticulum on the posterior wall ofthe short duct. Thus it happens that portions of oral plate and of theentodermal wall of Seessels pocket come to be included in the hypophysisat this stage. Stage V. 8-5 mm. (Embryos IV. 01 and 5 97).—The distal lobe(fig, 18, ) has enlarged considerably, while the proximal lobe () ismuch smaller relative to the whole buccal pouch. The duct is now reducedto a fine strand of cells, Seessels pocket and the remnant of the oral platehave disappeared completely. The proximal lobe, which lies entirely posterior to the remnant of the 202 Dr Katharine M. Parker duct, is wide from side to side, but very shallow dors
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectanatomy, bookyear1867
