A Scanning Electron Microscopic Study of the Blood Vascular Architecture of the Snake Hypophysis : Endocrinology
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概要
- 論文の詳細を見る
By means of light- and scanning electron microscopy, the vascular route in the hypophysial region was studied. Materials used were four species of adult snakes (Elaphe qnadrivirgata, E. climacophora, E. conspicillate and Rhabdophis tigrinus). The infundibular arteries give off the primary capillary plexus in the median eminence. Interesting fact is that the primary capillary plexus in the dorsal median eminence is continuous with the portal vessels supplying the secondary capillary plexus in the cephalic lobe of the pars distalis, similarly, the primary capillary plexus of the ventral median eminence converges to portal vessels supplying the secondary capmary plexus in the caudal lobe of the pars distalis. These results suggest that the pars distalis of snake hypophysis is controlled by a dual hypothalamic regulatory mechanism.
- 1990-08-15
著者
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Oota Yoshihiko
Biological Institute, Faculty of Science, Shizuoka University
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Oota Yoshihiko
Biological Institute Faculty Of Science Shizuoka University
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Koshimizu I
Biological Institute Faculty Of Science Shizuoka University
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Koshimizu Ichiro
Biological Institute Faculty Of Science Shizuoka University
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Oota Yoshihiko
Biological Institute Faculty Of Science
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