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Poliosis circumscripta, commonly referred to as a "white forelock", is a condition characterized by localized patches of white hair due to a reduction or absence of melanin in hair follicles. Although traditionally associated with the scalp, poliosis can affect any hairy area on the body, including eyebrows, eyelashes, and beards.
Canities subita, also called Marie Antoinette syndrome or Thomas More syndrome, is an alleged condition of hair turning white overnight due to stress or trauma. [1] The trivial names come from specific cases in history including that of Queen Marie Antoinette of France whose hair was noted as having turned stark white overnight after her capture following the ill-fated flight to Varennes ...
In humans, goose bumps occur everywhere on the body, including the legs, neck, and other areas of the skin that have hair. In some people, they even occur in the face or on the head. In humans, goose bumps tends to occur across the whole body, especially when elicited by thermal or emotional stimuli, and only locally when elicited via tactile ...
An extensively expressed rabicano Arabian horse Classic rabicano markings on flanks and a skunk tail. Rabicano, sometimes called white ticking, is a horse coat color characterized by limited roaning in a specific pattern: its most minimal form is expressed by white hairs at the top of a horse's tail, [1] often is expressed by additional interspersed white hairs seen first at the flank, then ...
Horses with the classic or true roan pattern may be any base color which is intermingled with unpigmented white hairs on the body. Except for white markings under the control of other genes, the head, mane, tail, and lower legs are dark. [2] Roan is a simple dominant trait symbolized by the Rn allele. [3]
The order in which greying happens is usually: nose hair, hair on the head, beard, body hair, eyebrows. [ 2 ] [ failed verification ] Greying is a gradual process; according to a study by L'Oreal , overall, of those between 45 and 65 years old, 74% had some grey hair, covering an average of 27% of their head, and approximately 1 in 10 people ...
Pili multigemini, also known as "compound hairs," [2] is a malformation characterized by the presence of bifurcated or multiple divided hair matrices and papillae, giving rise to the formation of multiple hair shafts within the individual follicles. [3] [4]
Bay roan (sometimes called "red roan") A "blue roan", roaning over a black base coat Red roan, roaning over chestnut, sometimes called "strawberry roan" Roan is a horse coat color pattern characterized by an even mixture of colored and white hairs on the body, while the head and "points"—lower legs, mane, and tail—are mostly solid-colored.