Thus, secretory material is released into the lumen by apocrine and
merocrine modes during pre-breeding and the active breeding period.
In
merocrine secretion, the limiting membrane of the secretory vesicle fuses with the apical plasma membrane, so that the cell empties its contents without any loss of cytoplasm (exocytosis).
The reticular dermis contained many collagen fibers, with abundant sebaceous glands, hair follicles and a few
merocrine sweat glands immersed.
The Japanese too are clean, and the author claims that Caucasians have
merocrine sweat glands in profusion while Asians have few or none.
In general, exocrine glands are classified into unicellular and multicellular glands according to the number of composition cells, and they can be divided further into holocrine glands and
merocrine glands depending on their patterns of secretion (Kurosumi et al.