WebStructure and function Structure. In actinopterygians, the pelvic fin consists of two endochondrally-derived bony girdles attached to bony radials.Dermal fin rays (lepidotrichia) are positioned distally from the radials.There are three pairs of muscles each on the dorsal and ventral side of the pelvic fin girdle that abduct and adduct the fin from the body.

WebThe adipose fin is a soft, fleshy fin found on the back behind the dorsal fin and just forward of the caudal fin. It is absent in many fish families, but found in nine of the 31 euteleostean orders (Percopsiformes, Myctophiformes, Aulopiformes, Stomiiformes, Salmoniformes, Osmeriformes, Characiformes, Siluriformes and Argentiniformes). Famous …

WebFish locomotion is the various types of animal locomotion used by fish, principally by swimming.This is achieved in different groups of fish by a variety of mechanisms of propulsion, most often by wave-like lateral flexions of the fish's body and tail in water, and in various specialised fish by motions of the fins.The major forms of locomotion in fish are:

WebA dorsal fin is a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom.Many species of animals possessing dorsal fins are not particularly closely related to each other, though through convergent evolution they have independently evolved external superficial fish-like body plans adapted to their marine …

WebFish anatomy is the study of the form or morphology of fish.It can be contrasted with fish physiology, which is the study of how the component parts of fish function together in the living fish. In practice, fish anatomy and fish physiology complement each other, the former dealing with the structure of a fish, its organs or component parts and how they are put …

WebA fin is a thin component or appendage attached to a larger body or structure. Fins typically function as foils that produce lift or thrust, or provide the ability to steer or stabilize motion while traveling in water, air, or other fluids.Fins are also used to increase surface areas for heat transfer purposes, or simply as ornamentation.. Fins first evolved on fish as a means …

WebVoluntary childlessness, also called being childfree, describes the voluntary choice to not have children.. In most societies and for most of human history, choosing not to have children was both difficult and undesirable. The availability of reliable contraception along with support provided in old age by one's government rather than one's family has made …

WebCorydoras panda is a species of catfish belonging to the genus Corydoras, of the family Callichthyidae, and is a native member of the riverine fauna of South America.It is found in Peru and Ecuador, most notably in the Huanaco region, where it inhabits the Rio Aquas, the Rio Amarillae, a tributary of the Rio Pachitea, and the Rio Ucayali river system.

WebOrange to greenish brown. Numerous orange and white dots over the flanks. Black and white dots on the pelvic, anal and caudal fins. Found in lagoons over coral rubble or sea-grass beds. Benthivorous 35 cm. Commercial fish. Common dolphinfish (Dorade) Extended body with a dorsal fin stretching from the head and stopping short of the caudal fin ...

WebMusculus pubococcygeus (muscolo pelvico) Gli esercizi di Kegel, conosciuti anche come esercizi del pavimento pelvico, consistono nel contrarre e rilassare ripetutamente i muscoli che fanno parte del pavimento pelvico, ora chiamati colloquialmente "muscoli di Kegel" dal nome del ginecologo ideatore, il dott.Arnold Kegel.Gli esercizi possono essere eseguiti …