Introduction. Baastrup's sign, also referred to as âkissing spinesâ, is a common disorder of the vertebral column characterized by close approximation and contact of the spinous processes of two adjacent vertebrae, resulting in the formation of a new joint between them (Baastrup, 1936 and Sartoris et al., 1985).. Baastrup's sign, also referred to as âkissing spinesâ, is a common disorder of the vertebral column characterized by close approximation and contact of the spinous processes of two adjacent vertebrae, resulting in the formation of a new joint between them (Baastrup, 1936 and Sartoris et al., 1985).
The most likely theory though is that the name comes from the Old English word for sea-floor shark: hurse. Nurse sharks are slow-moving bottom-dwellers and are, for the most part, harmless to humans. However, they can be hugeâup to 14 feet (4.3 meters)âand have very strong jaws filled with thousands of tiny, serrated teeth, and will bite defensively if stepped on or bothered by divers who assume theyâre docile.
A Chart Shows the Diversity of Shark Sizes. Sharks come in all sizes. The largest is the whale shark, which has been known to get as large as 18 meters (60 feet). The smallest fits in your hand. And the great white shark is somewhere in the middle. See photos and learn more about the wide diversity of sharks, read 5 reasons to revere sharks, and see even more articles about sharks. Tags: