Preputial glands are exocrine glands that are located in front of the genitals of some mammals and produce pheromones. The preputial glands of female animals are sometimes called clitoral glands. Exocrine gland refers to glands that secrete their products via a duct. ... A sex organ, or primary sexual characteristic, narrowly defined, is any of those parts of the body (which are not always bodily organs according to the strict definition) which are involved in sexual reproduction and constitute the reproductive system in an complex organism; namely: Male: penis (notably the glans penis... Jump to: navigation, search Orders Subclass Multituberculata (extinct) Plagiaulacida Cimolodonta Subclass Palaeoryctoides (extinct) Subclass Triconodonta (extinct) Subclass Placentalia Afrosoricida Artiodactyla Carnivora Cetacea Chiroptera Creodonta (extinct) Dermoptera Desmostylia (extinct) Embrithopoda (extinct) Hyracoidea Insectivora Lagomorpha Litopterna (extinct) Macroscelidea Notoungulata (extinct) Perissodactyla Pholidota Primates Proboscidea Rodentia Scandentia Sirenia Tubulidentata Xenarthra Subclass Marsupialia Dasyuromorphia... Fanning honeybee exposes Nasonov gland (white-at tip of abdomen) releasing pheromone to entice swarm into an empty hive A pheromone is any chemical produced by a living organism that transmits a message to other members of the same species. ...

The best studied preputial glands are those of the House Mouse and the Brown Rat, because these two species are important model organisms and because their preputial glands are very similar in structure to the (much smaller) sebaceous glands of humans. The preputial glands of male musk deer produce strong-smelling musk which is of economic importance as it is used in perfumes. Jump to: navigation, search Binomial name Mus musculus Linnaeus, 1758 Mus musculus is the common house mouse. ... Jump to: navigation, search Binomial name Rattus norvegicus (Berkenhout, 1769) The Brown Rat or Norway Rat (Rattus norvegicus) is one of the most well-known and common rats, and also one of the largest. ... A model organism is one that is extensively studied to understand particular biological phenomena, with the expectation that discoveries made in the model organism will provide insight into the workings of other organisms. ... The sebaceous glands are glands found in the skin of mammals. ... The four species of musk deer make up the family Moschidae. ... Jump to: navigation, search Musk is the name originally given to a perfume obtained from the strong-smelling substance, secreted by the testicles of the musk deer, and hence applied to other animals, and also to plants, possessing a similar odor. ... Jump to: navigation, search Perfume is a mixture of fragrant essential oils and aroma compounds, fixatives, and solvents used to give the human body, objects, and living spaces a lasting and pleasant smell. ...

Humans do not have anatomical equivalents of the preputial glands described above. However, the term preputial glands or Tyson's glands is sometimes used for tiny whitish yellow pimples occasionally found on the corona of the glans penis and mistakenly believed to be glands involved in the production of smegma. The proper name for these structures is pearly penile papules (or hirsutoid papillomas); they are not glands but mere thickenings of the skin and are not involved in the formation of smegma. (Hyman 1969, Parkash 1982) Glans penis. ... Jump to: navigation, search Smegma, a transliteration of the Greek word σμήγμα for soap, is a combination of exfoliated (shed) epithelial cells, transudated skin oils and moisture that can accumulate under the foreskin of males and within the female vulva area, with a characteristic strong odor and taste. ... The penis (plural penises or penes) or phallus is the external male copulatory organ, and, in mammals, the external male organ of urination. ...

References

• Hyman AB, Brownstein MH. Tyson's `glands': ectopic sebaceous glands and papillomatosis penis. Arch Derm 1969; 99: 31-6
• Parkash S, Rao R, Venkatesan K, Ramakrishnan S. Sub-preputial wetness: its nature. Ann Natl Med Sci India 1982; 18: 109-12 Fulltext