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Incus
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:watermark(/images/watermark_only_413.png,0,0,0):watermark(/images/logo_url_sm.png,-10,-10,0):format(jpeg)/images/anatomy_term/incus/HZSlHo37hwqecoB8A0SxA_Incus_01.png "Incus; Image: Paul Kim"){kind=logo}
:watermark(/images/watermark_only_413.png,0,0,0):watermark(/images/logo_url_sm.png,-10,-10,0):format(jpeg)/images/anatomy_term/incus-3/MLFGFv2d3hzLuGU7FUEQ_Incus.png "Incus; Image: Mao Miyamoto"){kind=logo}
:watermark(/images/watermark_only_413.png,0,0,0):watermark(/images/logo_url_sm.png,-10,-10,0):format(jpeg)/images/anatomy_term/incus-2/di0ZAEKyiB6n7Kp3hFntvg_Incus.jpg "Incus; Image: Paul Kim"){kind=logo}
:watermark(/images/watermark_only_413.png,0,0,0):watermark(/images/logo_url_sm.png,-10,-10,0):format(jpeg)/images/anatomy_term/body-of-incus/ir6CDjCoxzYa5YgobhIw_Body_of_incus.png "Body of incus (Corpus incudis); Image: Mao Miyamoto"){kind=logo}
:watermark(/images/watermark_only_413.png,0,0,0):watermark(/images/logo_url_sm.png,-10,-10,0):format(jpeg)/images/anatomy_term/long-limb-of-incus/aaDfKBDhU47okbx4JtqQg_Long_limb_of_incus_magni.png "Long limb of incus (Crus longum incudis); Image: Mao Miyamoto"){kind=logo}
:watermark(/images/watermark_only_413.png,0,0,0):watermark(/images/logo_url_sm.png,-10,-10,0):format(jpeg)/images/anatomy_term/short-limb-of-incus/fXzsmbnJm3P0CKzY6b3A_Short_limb_of_incus_magni.png "Short limb of incus (Crus breve incudis); Image: Mao Miyamoto"){kind=logo}
:watermark(/images/watermark_only_413.png,0,0,0):watermark(/images/logo_url_sm.png,-10,-10,0):format(jpeg)/images/anatomy_term/lenticular-process-of-incus/xZuEhcomHDMWWfgCjio7g_Lenticular_process_of_incus_magni.png "Lenticular process of incus (Processus lenticularis incudis); Image: Mao Miyamoto"){kind=logo}
:watermark(/images/watermark_only_413.png,0,0,0):watermark(/images/logo_url_sm.png,-10,-10,0):format(jpeg)/images/anatomy_term/superior-ligament-of-incus-2/NjRpP5OOcMOCw4H9bgC8sQ_Superior_ligament_of_incus_magni.png "Superior ligament of incus (Ligamentum superius incudis); Image: Mao Miyamoto"){kind=logo}
The incus is the anvil-shaped central auditory ossicle which connects the malleus to the stapes.
It has two limbs and a cuboidal body. The body of the incus lies in the epitympanic recess, where it articulates with the head of the malleus via a facet, forming the incudomalleolar joint.
Its long limb extends into the tympanic cavity alongside the handle of the malleus and articulates with the head of the stapes via its lenticular process, forming the incudostapedial joint.
The short limb of the incus extends posteriorly and is connected to the superoposterior wall of the tympanic cavity by the superior ligament of incus.
Similar to the function of the other two auditory ossicles, the incus transmits vibrations from the malleus to the stapes which are then transmitted from the tympanic membrane to the inner ear.
| Terminology |
English: Incus Latin: Incus |
| Definition | The incus is the anvil-shaped central auditory ossicle which connects the malleus to the stapes. |
Learn more about the incus and the other auditory ossicles in the middle ear with the help of the following study unit:
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