Hair whorl patterns on the posterior aspect of the scalp among Nigerians.
The direction of the whorl can be difficult to determine. Toggle navigation.Two swirls or hair whorl: you have a strong temper!
See Also: Hair whorl direction and sexual orientation in human males. When viewed from above and behind the head, many people's hair whorls in either a clockwise CW or counterclockwise CCW direction. Frizzled6 controls hair patterning in mice.
While the OMIM database is open to the public, users seeking information about a personal medical or genetic condition are urged to consult with a qualified physician for diagnosis and for answers to personal questions. It has been noted previously that among all mammals, only humans have hair whorls, and that each individual must have a hair whorl . Long, fine hair sometimes assumes a false whorl but the true whorl can always be located close to the scalp.
There are no published reports discussing this topic to date. Kloepfer, H. Table 1. The calculated p values are listed in table 1.
We are determined to keep this website freely accessible. Several studies have data that fit this myth fairly well, but with enough exceptions that the myth can't be completely true. Clinical Synopsis Toggle Dropdown.
In people with short, straight hair, a single whorl is usually fairly obvious. Klar suggests a direction for further exploration: Journal of Experimental and Clinical Anatomy, 4, 21-24.
Sparky House Publishing, Baltimore, Maryland. Guo et al. Brewster 1925 reported a family with double whorls or double crown. Embryo chimera experiments implied that Mfz6 acts locally to control or propagate the macroscopic hair pattern and that epithelial cells rather than melanocytes are the source of Mfz6-dependent signaling.
Seminars in Cell and Developmental Biology 20: Non-right-handers NRH, i. If a person was born during the hours of Yin, Shen, Si, or Hai periods, he or she should have only one hair whorl located on either the left or the right side from the midline of the head face forward.
Sharma 1987 found a possible association between twinning and double occipital hair whorls; such was found in 25 of 244 twins, but in only 4 of 166 singletons. According to Chinese legend if a person was born during the hours of Chen, Shu, Chou, or Wei periods, he or she should have two or more hair whorls.