Homodynamy ( serial homology ; from other Greek. Ὅμοιος - “similar, similar” and δύναμις - “strength, meaning”) is one of the forms of general homology , consisting in the similarity of organs or parts of organs located sequentially on the longitudinal axis of the body of a living organism .
Homodynamic organs are called metameres . Examples of such organs are the vertebrae , spinal nerves , ribs , front and hind limbs of vertebrates , segments of the body of arthropods with all their parts, including limbs. If metameres are adapted to perform various functions, they may have a different structure (for example, wings and legs of birds ).
The term was proposed by the German biologist Ernst Haeckel in 1866 . The synonymous term serial homology was proposed by the English biologist Richard Owen in 1843 .
Sources
- Homodynamia - an article from the Biological Encyclopedic Dictionary.
- Homodynamy // Great Soviet Encyclopedia : [in 30 vol.] / Ch. ed. A.M. Prokhorov . - 3rd ed. - M .: Soviet Encyclopedia, 1969-1978. .
Links
- Homodynamy // Brockhaus and Efron Encyclopedic Dictionary : in 86 volumes (82 volumes and 4 additional). - SPb. , 1890-1907.