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The secretory process in swine apocrine sweat glands were studied by electron microscope. The sweat appeared to result from three different mechanisms: (a) fluid transport, probably involving a region of complex cellular interdigitations adjacent to the basement membrane, (b) exocytosis of vesicles, which in this species seem to be derived from the Golgi apparatus and finally (c) apocrine secretion.
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Gargiulo et al. (1990) studied this question.
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