INCISURA TYMPANICA Meaning and
Definition
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Incisura tympanica, also known as the tympanic notch or the tympanic incisure, is an anatomical feature located on the lower portion of the temporal bone in the skull. Specifically, it is a small, rounded indentation or notch found on the anterior aspect of the temporal bone, near the external auditory meatus.
The incisura tympanica serves as an essential component of the temporal bone's composition, contributing to the overall structure and shape of this bone. It is primarily responsible for forming the anterior and inferior borders of the external auditory meatus.
Its distinct shape and position allow the incisura tympanica to have several functional and anatomical implications. Firstly, it acts as a landmark for locating and identifying the external auditory meatus, which is a crucial passage for sound waves to enter the middle ear. Additionally, the incisura tympanica plays a role in the attachment of various muscles and ligaments involved in the movement and stabilization of the auditory structures.
The term "incisura tympanica" is derived from Latin, where "incisura" translates to "notch" or "indentation" and "tympanica" refers to the "tympanic" or "middle ear" region of the skull.
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Tympanic notch, i. Rivini, the defect in the upper portion of the long tympanic ring, between the greater and lesser tympanic spines; it is filled in by Shrapnell's membrane.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for INCISURA TYMPANICA
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Etymology of INCISURA TYMPANICA
The word "incisura tympanica" has its etymology rooted in Latin.
The term "incisura" comes from the Latin word "incisus", which means "cut", "divided", or "incised". It is derived from the verb "incido", which means "to cut into" or "to cut through".
The word "tympanica" comes from the Latin word "tympanum", meaning "drum" or "tympanum of the ear". It is derived from the Greek word "tumpanon", which also means "drum". In the context of the ear, it refers to the eardrum or the thin membrane that separates the outer ear from the middle ear.
