ISSN:
1432-0878
Schlagwort(e):
Fat bodies
;
Frog
;
Hypothalamo-hypophyseal control
;
Testes
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
,
Medizin
Notizen:
Summary In this study the authors have tried to furnish experimental support for the importance of fat bodies in the normal functioning of the hypothalamo-hypophyseal-gonadal system of the male frog, Rana esculenta. These experiments have shown a hypothalamohypophyseal control of the mobilization of fat body contents, directly involved in the control of testicular activity. Furthermore it is proposed that the fat body contents are released into the testis through direct vascular contacts between the two organs. We suggest that the A1 cells (lactotrophs) and/or B2 cells (FSH-gonadotrops) of the pars distalis contain a factor responsible for the mobilization of fat body contents, and that the pars distalis gonadotropins are incapable of stimulating the testis in the absence of fat bodies. In the light of these results a scheme has been put forward showing the position of fat bodies in the hypothalamohypophyseal-gonadal axis of the frog.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00220364
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