What is comparative anatomy?

Comparative anatomy is the study of physical structures inside and across species, genera and classification of the life of a higher level. The concepts of homologous, analogous and remains are essential for fields and support fields. In addition to zoology, it has close links to phylogeny, which deals with the development of species as well as evolutionary biology and paleontology. It also informs Cladistics, the predominant methodology used to identify and classify the species of predecessors and descendants into evolutionary groups.

The 16th century flake Andreas Vesalius laid the foundation for the development of comparative anatomy with 1534 issuing de Humani corporis fabrica libri libri libri - ie seven books on the structure of the human body. The publication Fabrica , as is known briefly, has launched a new tradition of empirical anatomy studio and the emergence of modern comparative anatomy, founding is credited to the English scientist and the 17th century doctors to Edward Tyson.

differences and similarities in comparative anatomy, now widespread by molecular studiesBiology is the basis for establishing evolutionary relations between and between species. A study of comparative anatomy brought strong evidence to supporting the theory of evolution. Organisms that have similar anatomical structures from embryo to adult forms are considered to be evolutionary closely related. It is also assumed that they share a common ancestor.

One of the basic concepts of comparative anatomy is the homologous structure. Homologous anatomical structures are structures that are found in organisms that are very similar in embryological development and form, but differ in function. It is believed that the existence of homologous structures suggests that organisms are closely related and shared a common ancestor. Examples of homologous structures are the forelegs of mammals - such as the dorsal flippers of whales and dolphins, the forelegs of cats and dogs and arms and legs of people and other primates -

anatomicalStructures found in organisms that differ in terms of development and morphology, but similar functions are known as analogous structures. The differences in embryonic development and final form suggest that there is no close evolutionary relationship between these two organisms and do not share a common ancestor. An example of analogous structures are the wings of insects and birds.

Another important concept is the concept of remains. Anatomical features found in the body that no longer serve no function are called remains. They are often reduced by sizes such as human addition. The presence of lynx in one organism and the rest in Another suggests that both share the common evolutionary predecessors and are closely linked in an evolutionary sense. For example, whales have a table bones similar to the ground mammals.