Editing Incus (section)

==Structure==
{{See also|Ossicles}}
The incus is the second of three [[ossicles]], very small bones in the [[middle ear]] which act to transmit sound. It is shaped like an [[anvil]], and has a long and short crus extending from the body, which articulates with the [[malleus]].<ref name=GRAYS2005>{{cite book |last=Drake|first=Richard L.|title=Gray's anatomy for students|year=2005|publisher=Elsevier/Churchill Livingstone |location=Philadelphia|isbn=978-0-8089-2306-0|author2=Vogl, Wayne |author3=Tibbitts, Adam W.M. Mitchell  |author4=illustrations by Richard |author5= Richardson, Paul }}</ref>{{rp|862}} The short crus attaches to the [[posterior ligament of the incus]]. The long crus articulates with the [[stapes]] at the lenticular process.

The [[superior ligament of the incus]] attaches at the body of the incus to the roof of the [[tympanic cavity]].

The incus is [[Homology (biology)|homologous]] to the [[quadrate bone]] found in other tetrapods.<ref>{{Cite journal |last1=Luo |first1=Zhexi |last2=Crompton |first2=Alfred W. |date=1994-09-07 |title=Transformation of the quadrate (incus) through the transition from non-mammalian cynodonts to mammals |url=http://www.tandfonline.com/doi/abs/10.1080/02724634.1994.10011564 |journal=Journal of Vertebrate Paleontology |language=en |volume=14 |issue=3 |pages=341–374 |doi=10.1080/02724634.1994.10011564 |bibcode=1994JVPal..14..341L |issn=0272-4634|url-access=subscription }}</ref>