Vertical family D2 Cumulonimbus capillatus with anvil-shaped incus supplementary feature.
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The malleus has evolved from the articular bone of the lower jaw, and the incus from the quadrate.
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And in mammals the quadrate and articular bones have become the incus and malleus bones in the middle ear.
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The eardrum is merged to the malleus, which connects to the incus, which in turn connects to the stapes.
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Special attention is paid to low clouds and convective cloud particularly cumulonimbus incus clouds.
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In mammals the quadrate and articular bones have become the incus and malleus bones in the middle ear.
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In the Jurassic, their quadrate and articular bones evolved into the incus and malleus bones in the middle ear.
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The resulting cloud is called cumulonimbus incus.
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Incus is the most type-specific supplementary feature, seen only with cumulonimbus of the species capillatus.
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While the stapes is present in all tetrapods, the malleus and incus evolved from lower and upper jaw bones present in reptiles.
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The three bones are arranged so that movement of the tympanic membrane causes movement of the malleus, which causes movement of the incus, which causes movement of the stapes.
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More examples
The ossicle between the malleus and the stapes
The incus or anvil is the anvil-shaped small bone or ossicle in the middle ear. It connects the malleus to the stapes. It was first described by Alessandro Achillini of Bologna.
Incus Records is an artist owned record label, founded by Derek Bailey, Tony Oxley, Evan Parker and Michael Walters, specialising in the dissemination of free-improvised music. The first release on the label was The Topography of the Lungs, recorded by Bailey, Parker and Han Bennink in 1970. ...
A small anvil-shaped bone in the middle ear; an accessory cloud, in the shape of an anvil which forms by spreading at the top of a cumulonimbus. Also called a thunderhead
The middle ear ossicl eof mammals, situated between malleus and stapes. Derived from the quadrate bone of more primitive vertebrates.