. The endocrine organs; an introduction to the study of internal secretion . FIG. 46.—Mesial sagittal section through the pituitary body of an adult cat. Photograph.(Herring.) The intraglandular cleft is accidentally broken open in the section. Noticethe extension in the cat of the infundibulum into the middle of the pars nervosa. d f &3\ • » •e m^m^^W. FIG. 47.—Sagittal section of pituitary of adult cat. Blood-vessels injected. Photograph.(Herring.) a, optic chiasma ; b, tongue-like process of pars intermedia ; c, third ventricle; d, ; e, extension of pars intermedia ro


. The endocrine organs; an introduction to the study of internal secretion . FIG. 46.—Mesial sagittal section through the pituitary body of an adult cat. Photograph.(Herring.) The intraglandular cleft is accidentally broken open in the section. Noticethe extension in the cat of the infundibulum into the middle of the pars nervosa. d f &3\ • » •e m^m^^W. FIG. 47.—Sagittal section of pituitary of adult cat. Blood-vessels injected. Photograph.(Herring.) a, optic chiasma ; b, tongue-like process of pars intermedia ; c, third ventricle; d, ; e, extension of pars intermedia round neck of gland ;/, points to pars intermedia; g,larger blood-vessels entering pars nervosa ; h, posterior limit of gland. Structure of the Pituitary 77 cleft. It is separated from it by a layer of epithelial tissue of varyingthickness, which although also originally derived from the epitheliumof Rathkes pouch, differs in certain respects from the pars anterior—its cells being less granular and its blood-vessels much less portion of the gland is known as the pars intermedia since it liesbetween the pars anterior and the pars nervosa. From the former it isseparated by the cleft just described: from the pars nervosa there is notalways a well-defined line of separation—indeed cells of the pars inter-


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Keywords: ., bo, bookcentury1900, bookdecade1910, bookidendocrineorgansi00shar