The anatomy of the circumgenital scent gland of Saguinus fuscicollis (Callitrichidae, Primates)
Autor: | I. Küderling, U. Zeller, Gisela Epple, H.-J. Kuhn |
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Rok vydání: | 1988 |
Předmět: |
0106 biological sciences
Scent gland 05 social sciences Apocrine Holocrine Anatomy Labia majora Biology Hair follicle 010603 evolutionary biology 01 natural sciences medicine.anatomical_structure stomatognathic system Excretory system medicine 0501 psychology and cognitive sciences Animal Science and Zoology 050102 behavioral science & comparative psychology Epidermis Ecology Evolution Behavior and Systematics Penis |
Zdroj: | Journal of Zoology. 214:141-156 |
ISSN: | 1469-7998 0952-8369 |
DOI: | 10.1111/j.1469-7998.1988.tb04992.x |
Popis: | In the adult male Saguinus fuscicollis, the scrotal skin and the area above the root of the penis are raised in a sharply defined cushion, which extends cranially into a rectangular suprapubic pad. The circumgenital area of the adult female resembles that of the male, except that the suprapubic pad is relatively and absolutely larger. A complex glandular organ, composed of holocrine and apocrine glands, is located beneath the epidermis of the circumgenital skin. In males, specialized holocrine glands associated with hair follicles predominate. They form a layer, 2-3 mm deep beneath the epidermis. These holocrine glands have a complex alveolar structure and possess numerously branched excretory ducts. Each group of glands empties into a common duct which enters the hair follicle. In males, the apocrine glands are located predominantly at the periphery of the glandular pad and between the scrotal and perineal areas. The excretory ducts of most apocrine glands empty on to the skin surface in close spatial association with hair follicles. However, independent openings were also observed. In females, the specialized holocrine glands resemble those of males but are more frequently interspersed with apocrine glands. The apocrine glands are larger and much more numerous than in males, especially in the region of the labia majora. Gonadectomy of an adult male and female resulted in a reduction in the size of the holocrine glands but had much less effect on the apocrine glands of the scent organ. In addition, the sexual dimorphism in gland histology was retained years after castration. |
Databáze: | OpenAIRE |
Externí odkaz: |
Abstrakt: | In the adult male Saguinus fuscicollis, the scrotal skin and the area above the root of the penis are raised in a sharply defined cushion, which extends cranially into a rectangular suprapubic pad. The circumgenital area of the adult female resembles that of the male, except that the suprapubic pad is relatively and absolutely larger. A complex glandular organ, composed of holocrine and apocrine glands, is located beneath the epidermis of the circumgenital skin. In males, specialized holocrine glands associated with hair follicles predominate. They form a layer, 2-3 mm deep beneath the epidermis. These holocrine glands have a complex alveolar structure and possess numerously branched excretory ducts. Each group of glands empties into a common duct which enters the hair follicle. In males, the apocrine glands are located predominantly at the periphery of the glandular pad and between the scrotal and perineal areas. The excretory ducts of most apocrine glands empty on to the skin surface in close spatial association with hair follicles. However, independent openings were also observed. In females, the specialized holocrine glands resemble those of males but are more frequently interspersed with apocrine glands. The apocrine glands are larger and much more numerous than in males, especially in the region of the labia majora. Gonadectomy of an adult male and female resulted in a reduction in the size of the holocrine glands but had much less effect on the apocrine glands of the scent organ. In addition, the sexual dimorphism in gland histology was retained years after castration. |
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ISSN: | 14697998 09528369 |
DOI: | 10.1111/j.1469-7998.1988.tb04992.x |