Question

Write short notes on Ear ossicles.

Answer 1

Ear ossicles

The middle ear contains a flexible chain of three middle bones called ear ossicles. The three ear ossicles are as follows.

(i) Malleus

(ii) Incus

(iii) Stapes

The malleus is attached to tympanic membrane on one side and to incus on the other side. The incus is connected with stapes. Stapes, in turn, are attached with an oval membrane, fenestra ovalis, of internal ear. The ear ossicles act as a lever that transmits sound waves from external ear to internal ear.

Answer 2

Dear Student,

● Auditory (ear) ossicles -

• Middle ear consists of three small bones called ossicles - malleus, incus and stapes.
• They are joined together in chain which helps in amplification of sound.
• Malleus is attached to eardrum, incus articulates with stapes, footplate of stapes is at oval window.
• They transmit sound from air to cochlea.

[Refer to the image for well labelled diagram of ossicles.]

Thanks dear. Hope this helps you...