A Fish skeletal system mainly consists of exoskeleton, endoskeleton and are made of either flexible cartilage or hard bone which are supported by the muscles.
Like the anterior part of the exoskeleton, the scales that make up the posterior part of the exoskeleton also exhibit contrasting morphology and histology across major gnathostome groups. Many early chondrichthyan scales are very small and thick, have a crown and bulging base separated by a con...
Calcium (Ca2+) is a major component of the skeleton in vertebrates and the exoskeleton of some invertebrates (e.g. in bones, scales or shellfish shells) and plays key roles in a wide range of physiological processes, such as muscular contraction, modulation of permeability and excitability of...
)isamajorcomponentoftheskeletonin vertebratesandtheexoskeletonofsomeinvertebrates (e.g.inbones,scalesorshellfishshells)andplayskey rolesinawiderangeofphysiologicalprocesses,suchas muscularcontraction,modulationofpermeabilityand excitabilityofplasmamembranes,nervesignaltransduc- ...
An endoskeleton entirely made of bone (Hence bony fish). Possess an anterior tip mouth opening. Either freshwater or marine. An exoskeleton made of cycloids (thin bony plates). Aligned based on whether the outer edges are spiny or smooth They have an operculum on either side of their gills...