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[4] [10] Cornrows are traditionally called "kolese" or "irun didi" in Yoruba, and are often nicknamed "didi braids" in the Nigerian diaspora. [11] Cornrows are worn by both sexes, and are sometimes adorned with beads, shells, or hair cuffs. [1] The duration of braiding cornrows may take up to five hours, depending on the quantity and width. [12]
Arachnodactyly ("spider fingers") is a medical condition that is characterized by fingers and toes that are abnormally long and slender, in comparison to the palm of the hand and arch of the foot. In some cases, the thumbs of an individual with the condition are pulled inwards towards the palm.
Footwear that is too small or too narrow, or with too shallow a "toe box", will exacerbate any underlying problem with a toenail. Sharp square corners may be uncomfortable and cause snagging on socks. Proper cutting leaves the leading edge of the nail free of the flesh, precluding it from growing into the toe. Filing of the corner is reasonable.
The hard part at the center of the corn resembles a barleycorn or shoe tack, that is, a cone or funnel shape with a broad top and a pointed tip at bottom. Because of their shape, corns intensify the pressure at the tip and can cause deep tissue damage and ulceration . [ 2 ]
They are analogous to the knuckles of the hand, and are consequently known as toe knuckles in common speech. They are condyloid joints , meaning that an elliptical or rounded surface (of the metatarsal bones) comes close to a shallow cavity (of the proximal phalanges).
[9] [10] These bacteria do not normally survive on dry, healthy skin, but can thrive in moist conditions. [9] The seal between the nail and finger acts as a physical barrier to prevent infection, however hyper-hydration or destruction of the epidermis can impair the barrier, allowing the bacteria to colonise.
The cause is poorly understood due to a lack of research, but genome-wide scans indicate that it is a heritable trait, and could be autosomal dominant. [4] However, the wide variance in the size and structure of the accessory nail indicates that the trait may not follow a Mendelian pattern of inheritance, and may instead be a complex trait affected by multiple genes with minor genetic effects.
Leukonychia (or leuconychia) is a medical term for white discoloration appearing on nails. [2] It is derived from the Greek words leuko 'white' and onyx 'nail'. The most common cause is injury to the base of the nail (the matrix) where the nail is formed.