Thyroarytenoid muscle
Thyroarytenoid Muscle
The Thyroarytenoid Muscle (pronounced: thy-ro-ar-y-ten-oid) is a broad, thin muscle that forms the body of the vocal fold and that supports the wall of the ventricle and its appendix.
Etymology
The term "Thyroarytenoid" is derived from the Greek words "thyreos" (meaning shield), "arytaina" (meaning ladle), and "eidos" (meaning form or shape). This is in reference to the muscle's location and its functional relationship with the thyroid and arytenoid cartilages of the larynx.
Function
The Thyroarytenoid Muscle functions primarily in the production of speech and singing. It does this by adjusting the tension of the vocal cords, which in turn changes the pitch of the voice. The muscle is innervated by the recurrent laryngeal nerve, a branch of the vagus nerve.
Related Terms
- Vocal fold: The fold of mucous membrane in the larynx that vibrates to produce sound.
- Ventricle: A cavity or chamber in the body, in this context referring to the laryngeal ventricle.
- Appendix: A tube-shaped sac attached to and opening into the lower end of the large intestine in humans and some other mammals.
- Thyroid: A large ductless gland in the neck that secretes hormones regulating growth and development through the rate of metabolism.
- Arytenoid: Either of a pair of small three-sided pyramids that form part of the larynx, to which the vocal cords are attached.
- Larynx: The hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals; the voice box.
- Recurrent laryngeal nerve: A branch of the vagus nerve that supplies all the intrinsic muscles of the larynx, with the exception of the cricothyroid muscles.
- Vagus nerve: The tenth cranial nerve that interfaces with parasympathetic control of the heart, lungs, and digestive tract.
External links
- Medical encyclopedia article on Thyroarytenoid muscle
- Wikipedia's article - Thyroarytenoid muscle
This WikiMD dictionary article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski