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11. |
Evolution of the pineal gland in the adult chicken |
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Cells Tissues Organs,
Volume 104,
Issue 1,
1979,
Page 104-122
J. Boya,
J. Calvo,
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摘要:
The structural pattern of the pineal gland in the hen corresponds to a more advanced stage of the evolution which began in an early period of the animal’s life. This evolution corresponds mainly to the transformation of the large follicular cavities into cellular ‘rosettes’. The parafollicular layer disappears from the rosette wall which thus remains with only one row of cells (A and B pinealocytes). The cellular hypertrophy and the great development of the pinealocyte organelles in the adult pineal gland makes us think of this gland as a functionally active organ. This functional activity must have remained during the entire period of the time studied (1–5 years), due to the ultra-structural uniformity found and due to the fact that we could not observe any type of degenerative process in th
ISSN:1422-6405
DOI:10.1159/000145060
出版商:S. Karger AG
年代:1979
数据来源: Karger
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