Feb 13, 2023
The anatomy of middle ear is a crucial topic for the NEET PG exam because the middle ear is a complex and vital part of the ear and auditory system. The anatomy of the middle ear is closely related to the physiology of hearing and balance.
A deep understanding of the anatomy of the middle ear helps in understanding and diagnosing conditions such as otitis media, tympanic membrane perforation, otosclerosis, and other ear diseases.
It is a critical aspect of otolaryngology, and a comprehensive understanding of its structure and function is essential for success in the NEET PG exam and in the practice of medicine.
Read this blog to get a quick overview of this important ENT topic.
Middle ear cleft= Middle ear + Mastoid + ET
Middle ear volume is 1 ml. Mastoid volume is 5 ml. ET is closed at rest, so we don’t consider the volume. Middle ear cleft volume is 6 ml. Middle ear is communicating with the mastoid by an opening K/as Aditus. Mastoid antrum is the largest air cell in mastoid. Antrum is of adult size at birth
Middle ear mastoid is covered by a bony plate; that separates the middle ear mastoid from middle cranial fossa. The plate is K/as Tegmen or Dural plate. Tegmen /Dural plate is divided into 2 parts: The part that covers middle ear is K/as Tegmen tympani and the parts that covers mastoid is K/as Tegmen antri (just above antrum)
TM forms the lateral wall of the middle ear.
Also Read: Fetal Veins, Portal vein formation, Derivatives of the embryonic veins - NEET PG Anatomy
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