正中輪状甲状靭帯
WordNet
- relating to or situated in or extending toward the middle (同)medial
- the value below which 50% of the cases fall (同)median value
- relating to or constituting the middle value of an ordered set of values (or the average of the middle two in a set with an even number of values); "the median value of 17, 20, and 36 is 20"; "the median income for the year was $15,000" (同)average
- any connection or unifying bond
- a sheet or band of tough fibrous tissue connecting bones or cartilages or supporting muscles or organs
PrepTutorEJDIC
- 中央の,中間の / 中間数の,中央値の / (統計・数学で)中間数,中央値;中点
- 靱帯(じんたい)(骨と骨を結びつてけ関節の動きを調節する)
- mediumの複数形
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/01/11 05:27:50」(JST)
[Wiki en表示]
| Cricothyroid ligament |
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The ligaments of the larynx. Antero-lateral view.
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| Details |
| Identifiers |
| Latin |
Ligamentum cricothyreoideum |
| FMA |
55233 |
| Anatomical terminology
[edit on Wikidata]
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The cricothyroid ligament is composed of two parts:
- the median cricothyroid ligament along the midline (a thickening of the cricothyroid membrane) and
- the lateral cricothyroid ligaments on each side (these are also called conus elasticus).
The median cricothyroid ligament is a flat band of white connective tissue that connects the front parts of the contiguous margins of the cricoid and thyroid cartilages. It is a thick and strong ligament, narrow above and broad below. Each lateral ligament is known as the conus elasticus.
The lateral cricothyroid ligament is overlapped on either side by laryngeal muscles.
The conus elasticus (which means elastic cone in Latin) is the lateral portion of the cricothyroid ligament. The lateral portions are thinner and lie close under the mucous membrane of the larynx; they extend from the upper border of the cricoid cartilage to the lower margin of the vocal ligaments, with which they are continuous. The vocal ligaments may therefore be regarded as the free borders of each conus elasticus, and extend from the vocal processes of the arytenoid cartilages to the angle of the thyroid cartilage about midway between its upper and lower borders.
These anatomical structure have been called in many different ways in the past, thus generating confusion.
Clinical significance
This ligament is cut during emergency cricothyrotomy. This ligament's main purpose is to keep the cricoid and thyroid from traveling too far.
Additional images
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Muscles, nerves and arteries of neck.Deep dissection. Anterior view.
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References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
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Anatomy of the larynx
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| Cartilage |
- major/unpaired: Epiglottis
- Thyroid
- Cricoid
- minor/paired: Arytenoid
- Vocal process
- Muscular process
- Corniculate
- Cuneiform
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| Ligaments/folds |
- extrinsic ligaments: Hyoepiglottic ligament
- Thyrohyoid membrane
- Lateral ligament
- Median ligament
- Thyroepiglottic ligament
- Cricotracheal ligament
- intrinsic ligaments, upper: Quadrangular membrane
- Aryepiglottic
- Vestibular ligament/Vestibular fold
- intrinsic ligaments, lower: Cricothyroid ligament
- Median
- Lateral/Conus elasticus
- Vocal ligament/Vocal folds
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| Laryngeal cavity |
- Laryngeal inlet
- Vestibule
- Rima vestibuli
- Ventricle
- Rima glottidis/Glottis
- Infraglottic cavity
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| Other |
- Muscles of larynx
- Cricothyroid articulation
- Cricoarytenoid articulation
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UpToDate Contents
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English Journal
- Anatomical definition of the subglottic region.
- Kutta H1, Steven P, Paulsen F.
- Cells, tissues, organs.Cells Tissues Organs.2006;184(3-4):205-14.
- BACKGROUND: Due to laryngeal neoplasia, as well as infectious and autoimmune diseases, the subglottic region is of great clinical relevance. However, descriptions of the subglottic structures are inconsistent. The aim of our study was to present a precise analysis of the subglottic region and derive
- PMID 17409747
- A case of an anomalous cricothyroid artery.
- Loukas M1, Louis RG Jr, Cruz GS.
- Folia morphologica.Folia Morphol (Warsz).2004 Aug;63(3):359-62.
- The cricothyroid artery typically originates as a branch of the superior thyroid artery and courses medially to reach the median cricothyroid ligament. Anatomical variations of this pattern are not well documented in the literature. We present a case in which the left cricothyroid artery originated
- PMID 15478117
- Indications and results of fronto-lateral laryngectomy using a combined endolaryngeal and external approach.
- Conticello S1, Biondi S, Ferlito S.
- European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery.Eur Arch Otorhinolaryngol.1999;256(8):373-7.
- Patients with laryngeal anterior commissure, cord-commissure, bilateral anterior cord-commissure carcinomas (T1 and T2 N0 M0) were subjected to a new method of frontolateral laryngectomy using a combined endolaryngeal and external approach. The proposed surgical procedure allowed the removal of the
- PMID 10525937
Japanese Journal
- 気道狭窄病変に対するステント療法(<特集>気道狭窄に対する気管支鏡下治療)
Related Links
- Median cricothyroid ligament ・Attachment: From the inferior thyroid notch, which is located at the anterior median inferior part of the thyroid cartilage, to the superior median surface of the cricoid cartilage ・Function: The Median ...
- Median cricothyroid ligament information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. ... Introduction: Median cricothyroid ligament Description of Median cricothyroid ligament
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- median cricothyroid ligament
- ラ
- ligamentum cricothyroideum medianum
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