輪状甲状筋
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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/08/04 12:09:12」(JST)
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| Cricothyroid muscle |
|
Muscles of larynx. Side view. Right lamina of thyroid cartilage removed.
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The ligaments of the larynx. Antero-lateral view.
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| Details |
| Latin |
Musculus cricothyreoideus |
| Origin |
Anterior and lateral cricoid cartilage |
| Insertion |
Inferior cornu and lamina of the thyroid cartilage |
|
Nerve
|
external laryngeal branch of the vagus |
| Actions |
tension and elongation of the vocal folds |
| Identifiers |
| Gray's |
p.1081 |
Dorlands
/Elsevier |
m_22/12548712 |
| TA |
A06.2.08.001 |
| FMA |
46417 |
| Anatomical terms of muscle |
The cricothyroid muscle is the only tensor muscle of the larynx aiding with phonation. It attaches to the anterolateral aspect of the cricoid and the inferior cornu and lower lamina of the thyroid cartilage, and its action tilts the thyroid forward to help tense the vocal cords. Not to be confused with the posterior cricoarytenoid muscles, which are the only muscles directly responsible for opening (abducting) the space between the vocal cords to allow for sound production.
Contents
- 1 Action
- 2 Innervation
- 3 Additional images
- 4 See also
- 5 External links
Action
The cricothyroid muscle produces tension and elongation of the vocal folds by drawing up the arch of the cricoid cartilage and tilting back the upper border of the cricoid cartilage lamina; the distance between the vocal processes and the angle of the thyroid is thus increased, and the folds are consequently elongated, resulting in higher pitch phonation.
Innervation
This muscle is the only laryngeal muscle supplied by the branch of the vagus nerve known as the external branch of the superior laryngeal nerve (rather than the recurrent laryngeal nerve).
Additional images
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The veins of the thyroid gland.
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The fascia and middle thyroid veins.
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Side view of the larynx, showing muscular attachments.
See also
- Cricothyroid ligament
- Larynx
- vocal fold
- Thyroid cartilage
- Vocology - science and practice of voice habilitation
- Adam's apple
- Phonation
- National Center for Voice and Speech
- Cricothyroid approximation
External links
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Muscles of the neck
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| Cervical |
- Platysma
- Sternocleidomastoid
- Longus capitis
- Longus colli
- Scalene
- anterior
- medius
- posterior
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| Suboccipital |
- Rectus capitis posterior
- Obliquus capitis
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| Suprahyoid |
- Mylohyoid
- Stylohyoid
- Digastric
- Geniohyoid
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| Infrahyoid |
- Thyrohyoid
- Sternohyoid
- Sternothyroid
- Omohyoid
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| Pharynx |
- Pharyngeal constrictor
- Stylopharyngeus
- Salpingopharyngeus
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| Larynx |
- Cricothyroid
- Cricoarytenoid
- Arytenoid
- oblique arytenoid
- transverse arytenoid
- Thyroarytenoid
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| Fasciae |
- Deep cervical fascia
- Pretracheal fascia
- Prevertebral fascia
- Investing layer
- Carotid sheath
- Alar fascia
- Palatine aponeurosis
- Buccopharyngeal fascia
- Pharyngobasilar fascia
- Pharyngeal raphe
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Index of muscle
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| Description |
- Anatomy
- head
- neck
- arms
- chest and back
- diaphragm
- abdomen
- genital area
- legs
- Muscle tissue
- Physiology
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| Disease |
- Myopathy
- Soft tissue
- Connective tissue
- Congenital
- abdomen
- muscular dystrophy
- Neoplasms and cancer
- Injury
- Symptoms and signs
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| Treatment |
- Procedures
- Drugs
- anti-inflammatory
- muscle relaxants
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UpToDate Contents
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English Journal
- Intonation patterns in older children with cerebral palsy before and after speech intervention.
- Kuschmann A1, Miller N2, Lowit A1, Pennington L2.
- International journal of speech-language pathology.Int J Speech Lang Pathol.2016 Oct 5:1-11. [Epub ahead of print]
- PURPOSE: This paper examined the production of intonation patterns in children with developmental dysarthria associated with cerebral palsy (CP) prior to and after speech intervention focussing on respiration and phonation. The study further sought to establish whether intonation performance might b
- PMID 27705032
- [Head and neck intensity-modulated radiation therapy: Normal tissues dose constraints. Pharyngeal constrictor muscles and larynx].
- Graff P1, Woisard V2, Racadot S3, Thariat J4, Pointreau Y5.
- Cancer radiothérapie : journal de la Société française de radiothérapie oncologique.Cancer Radiother.2016 Oct;20(6-7):452-8. doi: 10.1016/j.canrad.2016.06.004. Epub 2016 Sep 3.
- Radio-induced pharyngolaryngeal chronic disorders may challenge the quality of life of head and neck cancer long survivors. Many anatomic structures have been identified as potentially impaired by irradiation and responsible for laryngeal edema, dysphonia and dysphagia. Some dose constraints might b
- PMID 27599684
- Dysphagia in Duchenne muscular dystrophy: practical recommendations to guide management.
- Toussaint M1, Davidson Z2,3, Bouvoie V1, Evenepoel N1, Haan J1, Soudon P1.
- Disability and rehabilitation.Disabil Rehabil.2016 Oct;38(20):2052-62. doi: 10.3109/09638288.2015.1111434. Epub 2016 Jan 5.
- PURPOSE: Duchenne muscular dystrophy (DMD) is a rapidly progressive neuromuscular disorder causing weakness of the skeletal, respiratory, cardiac and oropharyngeal muscles with up to one third of young men reporting difficulty swallowing (dysphagia). Recent studies on dysphagia in DMD clarify the pa
- PMID 26728920
Japanese Journal
- 喉頭筋筋線維構成の比較解剖学的研究:3. イヌと霊長類, 筋線維と神経線維
Related Links
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- Musculus cricothyroideus information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. ... Introduction: Musculus cricothyroideus Description of Musculus cricothyroideus
★リンクテーブル★
[★]
- 英
- cricothyroid muscle (N)
- 同
- 前筋
- ラ
- musculus cricothyroideus
- 関
- 喉頭、喉頭筋
起始
停止
神経
主な作用
Henry Gray (1825-1861). Anatomy of the Human Body. 1918.