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A dorsiventral (Lat. ''dorsum'', "the back", ''venter'', "the belly") organ is one that has two surfaces differing from each other in appearance and structure, as an ordinary
leaf A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, ste ...
. This term has also been used as a synonym for dorsoventral organs, those that extend from a
dorsal Dorsal (from Latin ''dorsum'' ‘back’) may refer to: * Dorsal (anatomy), an anatomical term of location referring to the back or upper side of an organism or parts of an organism * Dorsal, positioned on top of an aircraft's fuselage * Dorsal c ...
to a
ventral Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position prov ...
surface. This word is also used to define body structure of an organism, e.g. flatworm have dorsiventrally flattened bodies.


References

Anatomy {{anatomy-stub