Sharks

12 Pages 2884 Words

projections are bent toward the larger one, then many nerve impulses are sent to the brain and vice versa for smaller projections bent away from the largest one. This is how the shark monitors its swimming direction, localize vibrations in the water and detect water currents (Taylor and Taylor 1986). The nerve impulses can also be carried in the opposite direction toward the hair cell sensory organs. These impulses inhibit the lateral line sense cells whenever the shark makes and violent movements such as escaping or attacking (Gold and Springer 1989).
The acoustic sense of the shark is similar to the lateral line system. Sharks can hear sounds within a human’s hearing range and, using their lateral line, they can also detect low frequency vibrations such as those make by struggling or wounded fish. Sharks have two inner ears, one on each side of the head. The inner ears contain canals, which are probably used in motion detection and they also contain vibration sensors that work with the lateral system (Taylor and Taylor 1986).

Eyes ...