A | B | C | D | E | F | G | H | CH | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
Arytenoid muscle | |
---|---|
![]() Muscles of larynx. Posterior view. Oblique arytenoid: The "X" in the center. Transverse arytenoid: Bands underneath the "X". Aryepiglotticus: Wraps around back. | |
![]() | |
Details | |
Origin | Arytenoid cartilage on one side |
Insertion | Arytenoid cartilage on opposite side |
Artery | Superior laryngeal artery |
Nerve | Recurrent laryngeal branch of the vagus |
Actions | Approximate the arytenoid cartilages (close rima glottis) |
Identifiers | |
Latin | musculus arytaenoideus |
TA98 | A06.2.08.012 A06.2.08.010 |
TA2 | 2203, 2205 |
FMA | 46582 |
Anatomical terms of muscle |
The arytenoid muscle /ærɪˈtiːnɔɪd/ or interarytenoid muscle is a composite intrinsic muscle of the larynx, consisting of a transverse part and an oblique part - the two parts may be considered as separate muscles: an unpaired transverse arytenoid muscle, and a bilaterally paired oblique arytenoid muscle.[1]
The two constituent parts differ in their attachments, structure and actions. Both receive motor innervation from the recurrent laryngeal nerve(s) (each nerve being a branch of one vagus nerve (CN X)).[1]
Clinical significance
Electromyography
Function of the arytenoid muscle is a good method to determine function of the recurrent laryngeal nerve.[2] Continuous electromyography of the arytenoid muscle can provide confidence to surgeons that the recurrent laryngeal nerve is not damaged during neck surgeries, such as thyroidectomy.[2]
Other animals
The arytenoid muscle is found in many animals, including dogs.[3]
Additional images
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The cartilages of the larynx. Posterior view.
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Muscles of larynx. Side view. Right lamina of thyroid cartilage removed.
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Aryepiglotic muscle
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Muscles of the larynx, seen from above.
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Dissection of the muscles of the palate from behind.
References
This article incorporates text in the public domain from page 1082 of the 20th edition of Gray's Anatomy (1918)
- ^ a b Standring, Susan (2020). Gray's Anatomy: The Anatomical Basis of Clinical Practice (42th ed.). New York. p. 727. ISBN 978-0-7020-7707-4. OCLC 1201341621.
{{cite book}}
: CS1 maint: location missing publisher (link) - ^ a b Li, Peng; Liang, Qing-Zhuang; Wang, Dong-Lai; Han, Bin; Yi, Xin; Wei, Wei (October 2019). "Modified arytenoid muscle electrode recording method for neuromonitoring during thyroidectomy". Gland Surgery. 8 (5): 469–476. doi:10.21037/gs.2019.08.07. ISSN 2227-684X. PMC 6842767. PMID 31741877.
- ^ 隆一, 相原 (1991). "イヌ披裂筋の構造と運動神経支配に関する研究". 日本耳鼻咽喉科学会会報. 94 (6): 805–816. doi:10.3950/jibiinkoka.94.805. PMID 1715914.
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