middle ear - meaning and definition. What is middle ear
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What (who) is middle ear - definition

PART OF THE EAR THAT LIES BETWEEN THE EARDRUM AND THE OVAL WINDOW
Middle-ear; Ear, middle; Middle Ear; Auris media; Middle ears

middle ear         
¦ noun the air-filled central cavity of the ear, behind the eardrum.
Protruding ear         
  • Father and son with otapostasis
ABNORMALLY PROTRUDING HUMAN EAR
User:Netha Hussain/sandbox/Bat ear; Prominent ear; Otapostasis; Protruding ears; Jug ear
Prominent ear, otapostasis or bat ear is an abnormally protruding human ear. It may be unilateral or bilateral.
external ear         
THE OUTER PORTION OF THE EAR WHICH INCLUDES THE AURICLE AND THE EAR CANAL AND LEADS TO THE EARDRUM
External ear; Auricularis anterior muscle; Attolens aurem muscle; Attrahens aurem muscle; Auricularis; Auricularis muscle; Auriculares; Ear, external; Intrinsic muscles of external ear; Auriculares anterior; Auriculares muscles; Auricular muscles; Auricularis muscles; Auris externa; Musculi auriculares; Extrinsic muscles of external ear; Auricular muscle; Intrinsic muscles of the external ear; Musculus auricularis; Outer ears; Wiggle ear; Wiggle ears; Wiggling ears; Wiggling ear
¦ noun the parts of the ear outside the eardrum, especially the pinna.

Wikipedia

Middle ear

The middle ear is the portion of the ear medial to the eardrum, and distal to the oval window of the cochlea (of the inner ear).

The mammalian middle ear contains three ossicles, which transfer the vibrations of the eardrum into waves in the fluid and membranes of the inner ear. The hollow space of the middle ear is also known as the tympanic cavity and is surrounded by the tympanic part of the temporal bone. The auditory tube (also known as the Eustachian tube or the pharyngotympanic tube) joins the tympanic cavity with the nasal cavity (nasopharynx), allowing pressure to equalize between the middle ear and throat.

The primary function of the middle ear is to efficiently transfer acoustic energy from compression waves in air to fluid–membrane waves within the cochlea.

Examples of use of middle ear
1. Other common complications are middle ear inflammation, pneumonia, broncholaryngitis, diarrhea and encephalitis.
2. Otosclerosis affects the bones of the middle ear – the malleus, the incus and the stapes.
3. Complications include pneumonia and inflammation of the middle ear and the nervous system.
4. Normally, sound is conducted from the outside into the ear canal; the sound waves vibrate the tympanic membrane and set the bones of the middle ear in motion; and the vibrations pass to the fluid of the inner ear.
5. In support of Princess Alia’s efforts to raise awareness about vaccine–preventable diseases, Wyeth Pharmaceuticals has donated its vaccine PREVENAR (Pneumococcal Saccharide Conjugated Vaccine, Adsorbed) for children participating in the free vaccination program to help protect them against invasive pneumococcal disease (IPD). The World Health Organization (WHO) estimates that pneumococcal disease, which also can cause less serious, non–invasive conditions such as middle ear infection, results in up to one million deaths each year in young children around the world.