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The violet gland or supracaudal gland is a gland located on the upper surface of the tail of certain mammals, including European badgers and canids such as foxes, wolves, [1] and the domestic dog, [2] as well as the domestic cat. [3] Like many other mammalian secretion glands, the violet gland consists of modified sweat glands and sebaceous glands.
Eccrine glands on their foot pads, like those on palms and soles of humans, did not evolve to cool either but rather increase friction and enhance grip. Dogs and cats have apocrine glands that are specialized in both structure and function located at the eyelids (Moll's glands), ears (ceruminous glands), anal sac, clitoral hood, and circumanal ...
Dogs have ear mobility that allows them to rapidly pinpoint the exact location of a sound. Eighteen or more muscles can tilt, rotate, raise, or lower a dog's ear. A dog can identify a sound's location much faster than a human can, as well as hear sounds at four times the distance. [41] Dogs can lose their hearing from age or an ear infection. [42]
Skene's gland, lesser vestibular gland, paraurethral gland vestibule of the vulva, around the lower end of the urethra: serous tubulo-alveolar 36 Sublingual gland, Rivini's gland mouth: mucus (primarily) tubulo-alveolar 37 Submandibular gland: mouth: mixed (M+S) tubulo-alveolar 38 Sudoriparous glands, Boerhaave's glands skin: 39 Sigmund's glands
Sebaceous adenitis and hair loss in a dog. Sebaceous adenitis is an uncommon skin disease found in some breeds of dog, and more rarely in cats, rabbits and horses. [1] characterised by an inflammatory response against the dog's sebaceous glands (glands found in the hair follicles in the skin dermis), which can lead to the destruction of the gland.
There are specific glands in these areas that produce different odors, such as glands at the corner of the mouth, in the ear pinnae, the preputial and vaginal glands, and anal glands. [39] Dogs gain social information by sniffing particular odors secreted from these areas. [39] Dogs can also gain information from anal secretions.
The most common symptom is itching. Affected areas include the underside, the face, the feet, and the ears. [80] Flea allergy dermatitis is the most common skin disease of dogs in the United States. It is caused by sensitivity to flea saliva. [81] Food allergy* in dogs is commonly manifested as itching, especially of the face, paws, and the ...
In humans, sebaceous glands occur in the greatest number on the face and scalp, but also on all parts of the skin except the palms of the hands and soles of the feet. In the eyelids , meibomian glands , also called tarsal glands, are a type of sebaceous gland that secrete a special type of sebum into tears .