Internal characteristics of fish

 Products in detail

    nervous system of fish life activities is very important, it is composed by the brain, brain, spinal cord and spinal nerve, brain and spinal cord central nerve, cranial nerves and spinal nerve to peripheral nerve. Although the fish have a nervous system of the autonomic nervous system of the sympathetic and parasympathetic nerve, but quite primitive, that fish is still very low in vertebrates.

    sensory organ of the organ of fish have smell, sight, hearing, taste and unique aquatic vertebrate lateral line organ. Some fish can feel the magnetic field, and thus determine the direction.

    carp thyroid by Gill cage at the bottom of the occurrence, a sporadic small (capsule) dispersed in the throat area of the abdominal aorta ventral, based the basibranchial bone and sternum thyroid muscle.

    epithelial cells from the end of the gill fissure, located between the esophagus and the sinus. Telobranchial can produce calcitonin, prevent blood calcium content is too high, can inhibit osteoclasts on bone tissue disintegration.