Mandible, maxilla and auditory ossicles (malleus, incus and stapes) are branchial arch derivatives.
We have been investigating how the joint region between the malleus and incus forms.
The structure is known as the middle ear, and is made up of the stapes, incus, malleus, and tympanic membrane.
In mammals, the splanchnocranium derives the bones of the middle ear, the malleus, the incus and stapes.
This means that the parent cloud could quickly grow to become a cumulonimbus cloud and continue to grow into a cumulonimbus incus cloud.
The stapes is described as having a base, resting on the oval window, as well as a head that articulates with the incus.
The malleus is derived from the articular (a lower jaw bone), while the incus is derived from the quadrate (a cranial bone).
The incus is the bridge between the malleus and stapes.
