Stapes develop from -: (A) 1st arch, (B) 2nd arch, (C) 3rd arch, (D) 4th arch
Answer is B. Ans. is 'b' i.e., 2nd archo External auditary canal - First branchial cleft.o Auricle (pinna) - First & second branchial (pharyngeal) arch.o Middle ear cleft (Eustachian tube, tympanic cavity, attic, antrum, mastoid air cells) - 1st & 2nd arch,o Malleus, incus - 1st arch,o Stapes (except footplate) - 2nd arch,o Footplate of stapes and annular ligament - Otic capsule.