Question
Biology Question on sense organs
From outer to inside the sequence of three bones present in the middle ear of mammals is
A
malleus, stapes and incus
B
stapes, malleus and incus
C
malleus, incus and stapes
D
incus, malleus and stapes
Answer
malleus, incus and stapes
Explanation
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.