What is ENT - Describe how the derivatives of the branchial arch connect to the ear.
Meckel's cartilage, which is made up of the malleus head and neck, incus body and short process, and anterior malleal ligament, is mostly derived from the first branchial arch. It also affects the first three hillocks of His and the tensor tympani. The manubrium of the malleus, the long process and lenticular process of the incus, as well as the majority of the stapes, are all part of Reichert's cartilage, which is derived from the second branchial arch. Additionally, it affects His final three hillocks. The eustachian tube, mastoid air cells, and the inner layer of the tympanic membrane are all derived from the first branchial pouch. The external auditory canal and tympanic membrane's outer layer are both influenced by the first branchial cleft.
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