SULCUS TYMPANICUS Meaning and
Definition
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The term "sulcus tympanicus" refers to a specific anatomical feature located within the human auditory system. It is derived from Latin, with "sulcus" meaning "groove" or "furrow," and "tympanicus" relating to the tympanic or eardrum.
The sulcus tympanicus can be described as a small groove found on the inferior surface of the temporal bone, specifically in the region known as the external auditory meatus or the ear canal. It is situated near the junction between the bony and cartilaginous portions of the external auditory canal.
This groove plays an essential role in the physiology of the ear. It serves as a channel or pathway for the passage of certain structures that contribute to the auditory system's functionality. Specifically, the sulcus tympanicus encases the anterior and inferior portions of the tympanic membrane or eardrum.
The tympanic membrane is a thin, cone-shaped layer of tissue that separates the outer ear from the middle ear. It is responsible for transmitting sound waves that enter the ear canal, allowing them to reach the auditory ossicles in the middle ear for further processing. The sulcus tympanicus provides support and protection to the eardrum, contributing to its normal functioning and assisting in sound transmission.
In conclusion, the sulcus tympanicus is a groove located on the inferior surface of the temporal bone that secures and supports the tympanic membrane, allowing for the transmission of sound waves in the auditory system.
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Tympanic sulcus, a groove in the tympanic ring in which the circumference of the drum membrane is fixed.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for SULCUS TYMPANICUS
Etymology of SULCUS TYMPANICUS
The word "sulcus" comes from the Latin word "sulcus", meaning "furrow" or "trench". It refers to a groove or depression in anatomy.
The word "tympanicus" is derived from the Latin word "tympanum", which means "drum". It refers to the eardrum, a thin, membranous structure that separates the outer ear from the middle ear.
Therefore, "sulcus tympanicus" can be understood as a Latin phrase that means "tympanic groove" or "groove of the eardrum". It likely refers to a specific anatomical feature or structure related to the eardrum.
