(Lond.) VII. 279, 265–273 (1964). Kuxo, Y.: In: Human perspiration. Now, when these structures are examined by modern cytological methods, the aptness of his designations is questionable since both types of sweat glands have a merocrine mode of secretion, but with some justification his terminology continues to be used (Weiner and Hellman, 1960). Arch. GoMoRI, G.: Microscopic histochemistry, principles and practice. ges. Bunting, H., G. B. Wislocxl, and E. W. Dempsey: The chemical histology of human eccrine and apocrine sweat glands. Syph. In man, the distinctions between eccrine and apocrine sweat glands are clear cut; they differ in their development, histology, fine structure, distribution, and in their function. GUALDI, A., e N. BALDINO: Ricerche sul metabolismo per variazioni della temperatura locale dei tessuti; il contenuto in glicogeno e in acido lattico della cute e dei muscoli raffreddati. J. invest. 23, 23–32 (1954). Rec. Biol. J. Histochem. Cell Biol. I. which starts to smell if bacteria react with it. The secretory cells of the eccrine gland are surrounded by myoepithelial cells which can contract to propel its secretions to the surface. Arch. The skin of the great bushbaby. The ducts are lined by stratified (2 layers) cuboidal epithelium. They produce a clear, odorless substance, sweat, consisting primarily of water. Clinical photo of porocarcinoma at medial canthus. The normal eccrine gland The eccrine gland is derived from the primitive epidermal ridge. Tohoku J. exp. Immunofluorescence markers were found not to be specific and did not discriminate between the different types of glands or demonstrate the presence of apoeccrine glands. I. Cell Biol. Conf. Dosson, R. L., D. C. Abele, and D. M. Hale: The effect of high and low salt intake and repeated episodes of sweating on the human eccrine sweat gland. YASUNA, K., H. FURUSNWA, and N. OGATA: Histochemical investigation on the phosphorylase in the sweat glands of axilla. If the gland become blocked, the sebum can be forced out into Lesions tend to ulcerate. gland and duct, the hair, arrector pili muscle, and the IRS and J. invest. Expected results of diagnostic studies. Eccrine glands secrete via merocrine secretion, in which secretion is by exocytosis, and secrete directly onto the surface of the skin. 5, 318–322 (1930). MUNGER, B.: The ultrastructure and histophysiology of human eccrine sweat glands. Eccrine sweat glands are the other types of sweat glands found in the skin. New York: Pergamon Press 1962. Cytol. Derm. XI. It is composed of a secretory coil (glandular portion) which leads into a coiled proximal duct and then a straight duct which eventually passes through the epidermis. Mechanism of epinephrine induced eccrine sweating in human skin. VII. PETERSON, H.: Histologie und mikroskopische Anatomie. SILVER, eds. Pat. XV. II. Dosson, R. L., V. Formisano, W. C. Lobitz, and D. Brophy: Some histochemical observations on the human eccrine sweat glands. Beziehung auf die Absonderungsorgane des Haut-Talges und des Schweißes. TERZAKIS, J. Part of Springer Nature. What are Eccrine Sweat Glands. J. exp. help keep it soft, supple and waterproof. Invest. ), vol. Ann. Arch. The eccrine glands open to the external skin surface through the sweat pore. The intervening stroma of the adrenal gland consists primarily of small capillaries. MONTAGNA, W., K. YASUDA, and R. A. ELLIS: The skin of primates. Cell Biol. klin. ), Bd. 34, 233–235 (1960). The coiled secretory structure, which is the gland itself, is located in the lower dermis or the subcutaneous fat and is composed only of secretory cells. FORMISANO, V., and W. C. LOBITZ: The “Schiff-positive, nonglycogen material” in the human eccrine sweat glands. Über die Fähigkeit der menschlichen Haut zur Polysaccharidsynthese, ein Beitrag zur Histotopochemie der Phosphorylase. Derm. 399–418 (1835). MONTAGNA, W., A. ELLIS, R. A., and W. MONTAGNA: Histology and cytochemistry of human skin. 136, 97–105 (1960). A.: The ultrastructure of monkey eccrine sweat glands. HIBBS, R. G.: The fine structure of human eccrine sweat glands. (So, you need LEE, M. C.: Histology and histochemistry of human eccrine sweat glands with special reference to their defense mechanisms. 3, 211–218 (1953). ELLIS, R. A., and J. H. ABEL: Intercellular channels in the salt glands of marine turtles. exp. (Lpz.) Sebaceous glands are branched acinar (spherical) glands which Porocarcinoma is a rare malignant neoplasm of the eccrine or apocrine gland that usually presents clinically as a firm erythematous to violaceous nodule or verrucous plaque ranging in size from 0.4 cm to 20.0 cm with an average of 2.2 cm (Figure 1). 114, 231–237 (1952). Arch. 3, 1–17 (1958b). Springfield (Ill.): Ch. ), vol. Normale und Pathologische Anatomie der Haut I, https://doi.org/10.1007/978-3-662-30268-2_4, Handbuch Der Haut- und Geschlechtskrankheiten. Biol. HACKENBROCK, C. R., and P. W. BRANDT: Reversible ultrastructural changes in mitochondria in changes in functional state. © 2020 Springer Nature Switzerland AG. FusARO, R. M., and R. W. GoITZ: The normal human eccrine and apocrine glands. biochem. exp. Pflügers Arch. The long, unbranched duct travels through the dermis and epidermis to open on the surface of the skin. Derm. CHARLES, A.: An electron microscope study of the eccrine sweat gland. Physiol. The secretory portion of each gland is tightly wound and appears as a collection of cross-sectioned tubules. Plnxus, F.: Die normale Anatomie der Haut. ), vol. Med. 37, 534–562 (1917). SILVER, eds. XX. The salivary glands and exocrine pancreas are examined in this chapter. 3, p. 1–5. Derm. Cite as. Derm. Derm. J. clin. Boston: Little, Brown & Co. 1960. of the sebaceous gland disintegrate near the duct, and the duct J. Physiol. Z. EISEN, A. H. RADEMACHER, and H. B. Derm. J. appl. p. 1–14. Although independent histological descriptions of the sweat glands were pressented by Purkinje and his pupil Wendt, in 1833, and by Breschet and Roussel de Vauzzene, in 1834; it remained for Schiefferdecher (1917, 1922) to recognize that eccrine sweat glands were distinctly different from apocrine sweat glands. Derm. Color Textbook of Histology: Saunders Elsevier, p. 337. a) Eccrine Sweat Glands (merocrine secretion) Internat. There are two main types of sweat glands that differ in their structure, function, secretory product, mechanism of … J. invest. 188, 158–159 (1960). J. 214, 176–224 (1961). The distribution of sulfhydryl and disulfide groups. Okajimas Folia anat. A cloudy secretion, which starts to smell if bacteria react with.... Dermatologica ( Basel ) 19, 151–174, 219–236 ( 1939 ) G. B. Wislocxl, back! Cross-Sectioned tubules epitrichial glands ) or onto the surface of the coil paler! 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