NERVE ENDINGS IN VENOM GLAND OF SPIDER LATRODECTUS-MACTANS

被引:15
作者
JARLFORS, U
SMITH, DS
RUSSELL, FE
机构
[1] Papanicolaou Cancer Research Institute, School of Medicine, University of Miami, Miami, FL
[2] Laboratory of Neurological Research, University of Southern California School of Medicine, Los Angeles, CA
基金
美国国家科学基金会;
关键词
D O I
10.1016/0041-0101(69)90025-7
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Venom glands of the black widow spider were examined in the electron microscope. The venom-producing epithelial cells were found to be innervated by small axons from larger nerve trunks, penetrating the collagenous sheath surrounding the gland. The axons, which possess no glial sheath, are inserted between the epithelial cells, or occasionally invaginated into the cells in mesaxon-like folds. Axoplasmic contents showed a variety of neurosecretory products and electron-lucent vesicles. Regions of axoplasm with the structural characteristics of synapses were noted adjoining the epithelial cell membrane. The possible function of this nerve supply is discussed. © 1969.
引用
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页码:263 / &
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