白暨豚肾上腺的研究

白鱀豚肾上腺重与体重的平均比值为0.25克/公斤,皮质体积与髓质体积的比值为6.59。白鱀豚肾上腺的组织结构与其它海豚相似,它有比较发达的球状带。讨论了白鱀豚肾上腺形态变化在年龄生长、授乳等生理过程和在自然环境、豢养环境生态适应上的意义。并报道了一例罕见的白鱀豚肾上腺先天性表皮样囊肿。  

THE ADRENAL GLAND OF CHINESE RIVER DOLPHIN (LIPOTES VEXILLIFER)

The adrenal glands of six individuals of the Chinese river dolphin (Lipotes texillifer) were investigated. The histological structure of adrenal glands of Lipotes was found similar to that of other small whales, but the zona glomerulosa of this fresh water species is thicker than that of its marine allies. The ratio for weight of adrenal to body is 0.25 g/Kg, and the volumetric ratio for adrenal cortex to medulla is 6.59. In four individuals, the average ratio for weight of adrenal gland to thyroid gland is 1.04. The morphological changes of adrenal glands with age, the lactation and some physiological processes in relation to natural and artificial ecological conditions were discussed. The epithelial cyst found in adrenal gland of a dolphin from natural environment is also dealt with in detail.