WordNet

a major thoroughfare that bears important traffic
a blood vessel that carries blood from the heart to the body (同)arteria, arterial blood vessel

PrepTutorEJDIC

動脈 / (道路・水路・鉄道などの)勘線,(通信の)主チャンネル
名の無い,無名の

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/07/23 11:00:26」(JST)

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The brachiocephalic artery (or brachiocephalic trunk or innominate artery) is an artery of the mediastinum that supplies blood to the right arm and the head and neck.

It is the first branch of the aortic arch, and soon after it emerges, the brachiocephalic artery divides into the right common carotid artery and the right subclavian artery.

There is no brachiocephalic artery for the left side of the body. The left common carotid, and the left subclavian artery, come directly off the aortic arch. However, there are two brachiocephalic veins.

Origin and course in human

It arises, on a level with the upper border of the second right costal cartilage, from the commencement of the arch of the aorta, on a plane anterior to the origin of the left carotid; it ascends obliquely upward, backward, and to the right to the level of the upper border of the right sternoclavicular articulation, where it divides into the right common carotid and right subclavian arteries. The artery then crosses the trachea in front of it obliquely from the left to the right, roughly at the middle of the trachea or the level of the ninth tracheal cartilage.

In infants, it often divides cephalad to the sternoclavicular articulation, within the anterior triangle of the neck.

Branches

The innominate artery usually gives off no branches, but occasionally a small branch, the thyreoidea ima, arises from it. Other times, it gives off a thymic or bronchial branch.

The thyreoidea ima (a. thyreoidea ima) ascends in front of the trachea to the lower part of the thyroid gland, which it supplies.

It varies greatly in size, and appears to compensate for deficiency or absence of one of the other thyroid vessels. It occasionally arises from the aorta, the right common carotid, the subclavian or the internal mammary.

Additional images

Innominate artery labeled at upper right.
The tracheobronchial lymph glands.
Transverse section of the thorax, showing the contents of the middle and the posterior mediastinum.
Mediastinal surface of right lung.
The position and relation of the esophagus in the cervical region and in the posterior mediastinum. Seen from behind.
Dog heart
Brachiocephalic artery
Brachiocephalic trunk

External links

Anatomy figure: 21:06-02 at Human Anatomy Online, SUNY Downstate Medical Center
Brachiocephalic+trunk at eMedicine Dictionary

This article incorporates text from a public domain edition of Gray's Anatomy.

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

1. 血管輪 vascular rings
2. 縦隔リンパ節腫脹の外科的管理 surgical management of mediastinal lymphadenopathy

English Journal

Intraluminal Thrombus Attached to the Lesser Curvature of the Aortic Arch and Cerebral Ischemic Stroke after Its Surgical Removal.

Fu Q1, Zhang L1, Wei B1, Luo X1, Wang Y1, Zhao D1, Sun Y1, Yu C2.
Annals of vascular surgery.Ann Vasc Surg.2015 Jul;29(5):1016.e11-4. doi: 10.1016/j.avsg.2014.12.017. Epub 2015 Mar 12.
Some cases of thrombi at the ascending and descending aorta have been reported, but there are only a few reports of intraluminal aortic arch thrombi. Most intraluminal thrombi are associated with atherosclerotic lesions at the aortic wall. Here, we report a case of an intraluminal thrombus attached
PMID 25770379

Open Retrograde Endovascular Stenting for Left Common Carotid Artery Dissection Secondary to Surgical Repair of Acute Aortic Dissection: A Case Report and Review of the Literature.

Gao P1, Wang Y2, Chen Y2, Jiao L3.
Annals of vascular surgery.Ann Vasc Surg.2015 Jul;29(5):1019.e11-5. doi: 10.1016/j.avsg.2015.01.017. Epub 2015 Mar 9.
A 30-year-old male presented with an acute aortic artery dissection (Stanford type A) and underwent total arch replacement using a stented elephant trunk technique. One month later, the patient developed dissections in the innominate and left common carotid artery (CCA). The innominate artery dissec
PMID 25765635

Innominate artery injury from disseminated tuberculosis.

Chow OS1, Huang JT1, Sambol JT1, Bolanowski PJ1, Lovoulos CJ2.
Asian cardiovascular & thoracic annals.Asian Cardiovasc Thorac Ann.2015 Jul;23(6):704-6. doi: 10.1177/0218492314523767. Epub 2014 Feb 10.
A 49-year-old man presented with chest pain and was found to have hemorrhage and drainage from a chest wound secondary to disseminated tuberculosis involving the sternum and ankle. He then developed acute hemorrhage from an innominate artery pseudoaneurysm originating just below a severely diseased
PMID 24585307

Japanese Journal

症例長期気管カニューレ留置患者における気管腕頭動脈瘻の1救命例

川島隆,伊敷聖子,嘉手川康人 [他]
ICUとCCU 35(5), 419-422, 2011-05
NAID 40018899405

頸部血管超音波検査にて特異な所見を呈した腕頭動脈狭窄の一例

田中弘二,湧川佳幸,矢坂正弘,卯田健,岡田靖,井上亨,安森弘太郎
神経超音波医学 = Neurosonology : official journal of Japan Academy of Neurosonology 23(2), 116-119, 2011-03-24
NAID 10028201012

Related Pictures

★リンクテーブル★

リンク元	「腕頭動脈」
関連記事	「innominate」

「腕頭動脈」

Artery: Brachiocephalic artery
	Schematic of the proximal aorta, frontal view. The brachiocephalic artery (labeled innominate) is the third branch of the aorta and the first branch from the arch of the aorta. The heart in the lower left is not shown.
	The veins of the thyroid gland.
Latin	truncus brachiocephalicus
Gray's	p.548
Source	aortic arch
Branches	right common carotid artery; right subclavian artery; thyreoidea ima
Vein	brachiocephalic vein
MeSH	Brachiocephalic+Veins

　　[★]

英: brachiocephalic artery (KH), BCA, brachiocephalic trunk
ラ: truncus brachiocephalicus
同: 無名動脈 innominate artery

腕頭動脈は右にしかないことに注意

起始

大動脈弓

大動脈弓の起始側で最初に分枝するのが腕頭動脈である。

走行

分布

枝

「innominate」

　　[★]

adj.

無名の

関: anonymous

匿名

検索

案内

案内

innominate artery