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  4. From outer to inside the sequence of three bones present in the middle ear of mammals is

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Q. From outer to inside the sequence of three bones present in the middle ear of mammals is

JIPMERJIPMER 2008

Solution:

The middle ear cavity in mammals characteristically contains a chain of three little bones or ear ossicles extending between the tympanic membrane and the fenestra ovalis. These are called from outside as the malleus (hammer), incus (anvil) and stapes (stirrup), so named because of their characteristic shapes.