. The endocrine organs; an introduction to the study of internal secretion . FIG. 45. — Mesial sagittal section through the pituitary body of an adult monkey (semi-diagrammatic). (Herring.) a, optic ehiasma; b, third ventricle (infundibulum); c, d, extension of pars intermedia round neck of pituitary ;e, pars anterior seu glandularis ; /, intraglandular cleft; g, pars intermedia ; h, pars nervosa. Traces of the original connexion with the buccal ectoderm may persist inexceptional cases even in the adult, as the so-called pharyngeal vestigial structure—the paraliypopliysis—ha
. The endocrine organs; an introduction to the study of internal secretion . FIG. 45. — Mesial sagittal section through the pituitary body of an adult monkey (semi-diagrammatic). (Herring.) a, optic ehiasma; b, third ventricle (infundibulum); c, d, extension of pars intermedia round neck of pituitary ;e, pars anterior seu glandularis ; /, intraglandular cleft; g, pars intermedia ; h, pars nervosa. Traces of the original connexion with the buccal ectoderm may persist inexceptional cases even in the adult, as the so-called pharyngeal vestigial structure—the paraliypopliysis—has been described asoccurring in the dura mater lining of the sella turcica, and other smallaccessory bodies similar in structure to the anterior lobe have also beendescribed. It is possible that these may undergo hypertrophy after extirpa-tion of the main gland and partly supply its function. But the pars nervosa does not actually abut against the intraglandular 76 The Endocrine Organs. 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
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Keywords: ., bo, bookcentury1900, bookdecade1910, bookidendocrineorgansi00shar
