WordNet

of or characteristic of low rank or importance
one of lesser rank or station or quality
having an orbit between the sun and the Earths orbit; "Mercury and Venus are inferior planets"
lower than a given reference point; "inferior alveolar artery"
of low or inferior quality
a major thoroughfare that bears important traffic
a blood vessel that carries blood from the heart to the body (同)arteria, arterial blood vessel
suggestive of a thyroid disorder; "thyroid personality"
of or relating to the thyroid gland; "thyroid deficiency"; "thyroidal uptake" (同)thyroidal

PrepTutorEJDIC

(階級・親分・質・程度などが)『下の』,『劣る』, / (位置が)低い,下方の / 目下の者;劣った人
動脈 / (道路・水路・鉄道などの)勘線,(通信の)主チャンネル
甲状腺 / 甲状腺の

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/02/22 13:29:14」(JST)

wiki en

The inferior thyroid artery is an artery in the neck. It arises from the thyrocervical trunk and passes upward, in front of the vertebral artery and longus colli muscle. It then turns medially behind the carotid sheath and its contents, and also behind the sympathetic trunk, the middle cervical ganglion resting upon the vessel.

Reaching the lower border of the thyroid gland it divides into two branches, which supply the postero-inferior parts of the gland, and anastomose with the superior thyroid artery, and with the corresponding artery of the opposite side.

Structure

The branches of the inferior thyroid artery are the inferior laryngeal, the oesophageal, the tracheal, the ascending cervical and the pharyngeal arteries.

The inferior laryngeal artery climbs the trachea to the back part of the larynx under cover of the inferior pharyngeal constrictor muscle. It is accompanied by the recurrent nerve, and supplies the muscles and mucous membrane of this part, anastomosing with the branch from the opposite side, and with the superior laryngeal branch of the superior thyroid artery.

The tracheal branches of the inferior thyroid artery are distributed on the trachea, and anastomose below with the bronchial arteries.

The esophageal branches of the inferior thyroid artery supply the esophagus, and anastomose with the esophageal branches of the aorta.

The ascending cervical artery is a small branch which arises from the inferior thyroid artery as it passes behind the carotid sheath; it runs up on the anterior tubercles of the transverse processes of the cervical vertebrae in the interval between the anterior scalene muscle and the longus capitis. The ascending cervical artery gives twigs to the neck muscles and these anastomose with branches of the vertebral arteries. One or two spinal branches are sent into the spinal canal, through the intervertebral foramina to be distributed to the spinal cord and its membranes, and to the bodies of the vertebrae. It then anastomoses with the ascending pharyngeal and occipital arteries.

The pharyngeal branches of the inferior thyroid artery supply the pharynx.

The glandular branches of the inferior thyroid artery are small branches which directly supply the thyroid gland.

Clinical significance

The relationship between the recurrent laryngeal nerve and inferior thyroid artery is highly variable.^[1] The recurrent laryngeal nerve passes upward generally behind, but occasionally in front of, the inferior thyroid artery. This makes it vulnerable to injury during surgery that involves ligating the inferior thyroid artery, such as excision of the lower pole of the thyroid gland.

The injection of dye into the inferior thyroid artery can be used as an alternate method in identification the recurrent laryngeal nerve.^[2]

Additional images

The position and relation of the esophagus in the cervical region and in the posterior mediastinum. Seen from behind.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

^ Yalçin B (February 2006). "Anatomic configurations of the recurrent laryngeal nerve and inferior thyroid artery". Surgery 139 (2): 181–7. doi:10.1016/j.surg.2005.06.035. PMID 16455326.
^ Hepgul G, Kucukyilmaz M, Koc O, Duzkoylu Y, Sari YS, Erbil Y (2013). "The identification of recurrent laryngeal nerve by injection of blue dye into the inferior thyroid artery in elusive locations". Journal of Thyroid Research 2013: 539274. doi:10.1155/2013/539274. PMC 3563180. PMID 23401846.

External links

lesson5 at The Anatomy Lesson by Wesley Norman (Georgetown University) (antthyroidgland)
Yalçin B (February 2006). "Anatomic configurations of the recurrent laryngeal nerve and inferior thyroid artery". Surgery 139 (2): 181–7. doi:10.1016/j.surg.2005.06.035. PMID 16455326.
Anatomy photo:32:06-0100 at the SUNY Downstate Medical Center - "Larynx: Recurrent Laryngeal Nerve and Inferior Laryngeal Artery"

UpToDate Contents

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1. 甲状腺の外科解剖学 surgical anatomy of the thyroid gland
2. 副甲状腺の外科解剖学 surgical anatomy of the parathyroid glands
3. 初回および再手術の甲状腺摘除術 initial and reoperative thyroidectomy
4. 分化型甲状腺癌：外科的治療 differentiated thyroid cancer surgical treatment
5. 分化型甲状腺癌に対する中心領域および側頸部のリンパ節郭清（頸部郭清） central and lateral compartment lymphadenectomy neck dissection for differentiated thyroid cancer

English Journal

Clinical relevance and surgical anatomy of non-recurrent laryngeal nerve: 7 year experience.

Dolezel R1, Jarosek J, Hana L, Ryska M.
Surgical and radiologic anatomy : SRA.Surg Radiol Anat.2014 Sep 9. [Epub ahead of print]
PURPOSE: We report our clinical experience with non-recurrent inferior laryngeal nerve (NRLN).METHODS: We collected our data retrospectively during 7 years. Total thyroidectomies (TTEs; N = 626) and hemithyroidectomies (HTEs; N = 187) were performed in 766 patients (80.2 % of women) by the sam
PMID 25201561

Effectiveness of preventative and other surgical measures on hypocalcaemia following bilateral thyroid surgery: a systematic review and meta-analysis.

Antakia R1, Edafe O, Uttley L, Balasubramanian S.
Thyroid : official journal of the American Thyroid Association.Thyroid.2014 Sep 9. [Epub ahead of print]
Background A variety of measures have been proposed to reduce the incidence of post-thyroidectomy hypocalcaemia. The aim of this study was to perform a systematic review and meta-analysis of preventive and other surgical measures as reported in the literature. Methods Comprehensive searches of PubMe
PMID 25203484

Thyroid volume and doppler evaluation of inferior thyroid artery in ultrasound: Comparison between current and previous users of oral contraceptives.

Garcia TS1, Rech TH.
Journal of clinical ultrasound : JCU.J Clin Ultrasound.2014 Aug 21. doi: 10.1002/jcu.22221. [Epub ahead of print]
BACKGROUND: This study aimed to compare thyroid volume and Doppler sonographic evaluation of the inferior thyroid artery using ultrasound in current and previous users of oral contraceptives (OCs).METHODS: We evaluated 119 women who either currently use (n = 66) or have previously used OCs (n
PMID 25142871

Japanese Journal

術前検査にて非反回下喉頭神経と診断された甲状腺乳頭癌に対し上縦隔郭清を行った1例

日本気管食道科学会会報 68(1), 52-56, 2017
NAID 130005399561

S状結腸癌の同時性肝転移と診断した限局性腹膜中皮腫の1例

日本臨床外科学会雑誌 76(7), 1739-1746, 2015
NAID 130005122572

右鎖骨下動脈起始異常に伴う非反回下喉頭神経を認めた腎癌甲状腺転移の1例

日本臨床外科学会雑誌 76(6), 1283-1288, 2015
NAID 130005116720

Related Pictures

★リンクテーブル★

リンク元	「下甲状腺動脈」
関連記事	「inferior」「inferio」「thyroid」

「下甲状腺動脈」

Inferior thyroid artery
	Thyrocervical trunk and its branches, including inferior thyroid artery. Superficial dissection of the right side of the neck.
	Human parathyroid glands
Details
Source	Thyrocervical trunk
Vein	Inferior thyroid veins
Supplies	Thyroid gland
Identifiers
Latin	Arteria thyreoidea inferior
Dorlands; /Elsevier	a_61/12156378
TA	A12.2.08.043
FMA	10662
	Anatomical terminology; [edit on Wikidata]