Semicanal for tensor tympani
Semicanalis tensoris tympani
- Latin synonym: Semicanalis musculi tensoris tympani
- Synonym: Semicanal for tensor tympani muscle; Canal for tensor tympani
- Related terms: Canal for tensor tympani
Definition
The semicanal for tensor tympani, scientifically referred to as semicanalis m. tensoris tympani, is the upper portion of the musculotubal canal. This anatomical structure is located in the petrous part of the temporal bone of the skull. The semicanal serves as a passage through which the fibers of the tensor tympani muscle are transmitted.
The semicanal for tensor tympani proceeds to terminate in the anterior wall of the tympanic cavity, immediately above the semicanal for auditory tube. Within the middle ear cavity, the tensor tympani muscle fibers, which pass through this semicanal, connect to an auditory ossicle called the malleus. The contractions of the tensor tympani muscle help dampen the vibrations of the malleus to protect the inner ear from damage due to loud sounds.
References
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Text written by Muhammad A. Javaid, MD, PhD © 2024 IMAIOS.
Standring, S. (2016). ‘Chapter 37: External and middle ear’ in Gray’s anatomy: the anatomical basis of clinical practice. (41st ed.) New York NY: Elsevier, pp. 634-635.
XR Anatomy (copyright 2023-24). Available at: https://xranatomy.com/musculotubal-canal-of-temporal-bone-2/ (Updated: 10th Mar, 2023; Accessed 7rd April, 2024)
