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Kyphosis (from Greek κυφός (kyphos) 'hump') is an abnormally excessive convex curvature of the spine as it occurs in the thoracic and sacral regions. [1] [2] Abnormal inward concave lordotic curving of the cervical and lumbar regions of the spine is called lordosis.
A widow's peak is a V-shaped point in the hairline in the center of the forehead. Hair growth on the forehead is suppressed in a bilateral pair of periorbital fields. Without a widow's peak, these fields join in the middle of the forehead so as to give a hairline that runs straight across.
A widow's walk, also known as a widow's watch or roofwalk, is a railed rooftop platform often having an inner cupola/turret frequently found on 19th-century North American coastal houses. The name is said to come from the wives of mariners , who would watch for their spouses' return, often in vain as the ocean took their lives, leaving the ...
Sedum pulchellum is a species of flowering plant in the family Crassulaceae known by the common names widowscross [1] and widow's cross. It is native to calcareous areas of the South-Central and Southeastern United States and where it is found on flat rock outcrops, particularly cedar glades . [ 2 ]
If, however, there is a substantial dose, a bite can cause latrodectism. The main symptoms are generalized muscle pain, stomach cramps, nausea and vomiting. [2] [3] Initially a pinprick or burning sensation can be felt when bitten by widow spiders. If there was enough venom injected, pain worsens over the next hour.
When a black widow spider bites, it typically causes a painful pinprick sensation. The site of the bite then swells slightly and forms a red rash. You might see two fang marks inside the bite area ...
The cause of cutaneous horns is still unknown, but it is believed that exposure to radiation can trigger the condition. This is evidenced by a higher rate of cases occurring on the face and hands, areas that are often exposed to sunlight. Moreover, there is a higher prevalence in Asian countries with a warm climate.
The eye arrangement of spiders in the genus Latrodectus. Female widow spiders are typically dark brown or a shiny black in colour when they are full grown, usually exhibiting a red or orange hourglass on the ventral surface (underside) of the abdomen; some may have a pair of red spots or have no marking at all.
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