TYMPANIC NOTCH Meaning and
Definition
-
The tympanic notch, an anatomical feature of the temporal bone in mammals, refers to a concave depression located on the inferior aspect of the squamous part of the temporal bone. It is situated anterior to the external acoustic meatus or the auditory canal and posterior to the mandibular fossa.
The tympanic notch plays a crucial role in the formation of the temporomandibular joint (TMJ), which allows for the smooth opening and closing movements of the jaw. The presence of this groove creates the lateral part of the mandibular fossa, a shallow depression that accommodates the condyle of the mandible. The condyle articulates with the tympanic notch, forming this vital joint, enabling the lower jaw's various movements, such as chewing and talking.
Anatomically, the tympanic notch serves as a boundary landmark between the temporal bone and the mandible, contributing to the structural integrity and functionality of the jaw. It is characterized by its concave shape, which allows for an effective and stable hinge joint between the temporal bone and mandible.
Understanding the precise structure and location of the tympanic notch is significant in clinical contexts related to craniofacial development, dentistry, maxillofacial surgery, and other medical specializations where the knowledge of the TMJ is of importance. The tympanic notch's accurate identification and analysis can aide in diagnosing and treating various conditions and disorders related to the jaw joint, thus contributing to overall patient well-being.
-
Incisura of Rivini, incisura tympanica.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for TYMPANIC NOTCH
- tympanic notgh
- tympanic notah
- tympanic notbh
- tympanic notcx
- tympanic notcl
- tympanic notci
- tympanicknotch
- tympanicknowtch
- t ympanic notch
- ty mpanic notch
- tympa nic notch
- tympan ic notch
- tympani c notch
- tympanic n otch
- tympanic no tch
- tympanic not ch
- tympanic notc h
Etymology of TYMPANIC NOTCH
The word "tympanic" comes from the Greek word "tumpanikos", which means "of or pertaining to a drum". This term is derived from the Greek word "tumpanon", which means "drum". The word "notch" comes from the Old English word "nohsca", which means "nick or incision". Therefore, the etymology of "tympanic notch" refers to a concave incision or depression found in the tympanic bone, which is part of the middle ear.
Infographic
Add the infographic to your website:
