関: thoracic aorta

WordNet

make a score (on a hole) equal to par
(golf) the standard number of strokes set for each hole on a golf course, or for the entire course; "a par-5 hole"; "par for this course is 72"
a thin fragment or slice (especially of wood) that has been shaved from something (同)sliver, shaving
(usually plural) a part of a fruit or vegetable that is pared or cut off; especially the skin or peel; "she could peel an apple with a single long paring"
the large trunk artery that carries blood from the left ventricle of the heart to branch arteries

PrepTutorEJDIC

〈U〉同等,同価,同水準,同程度 / (また『par value』)〈U〉平価,額面価格 / 〈U〉(程度・質・状態・数量などの)平均,標準;(精神・健康などの)常態 / 〈C〉(ゴルフで)標準打数,パー / 《名詞の前にのみ用いて》平均の,標準の / 額面の
(ゴルフで)〈1ホールまたは1コース〉‘を'基準打数でとる,パーで上がる
〈U〉(皮を)むくこと,削ること / 〈C〉《複数形で》むいた皮,削りくず
胸の,胸部の
大動脈
とうちゃん(papa)

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/04/12 18:44:49」(JST)

wiki en

The thoracic aorta is a part of the aorta located in the thorax. It is a continuation of the descending aorta and contained in the posterior mediastinal cavity. The thoracic aorta begins at the lower border of the fourth thoracic vertebra where it is continuous with the aortic arch, and ends in front of the lower border of the twelfth thoracic vertebra, at the aortic hiatus in the diaphragm where it becomes the abdominal aorta.

At its commencement, it is situated on the left of the vertebral column; it approaches the median line as it descends; and, at its termination, lies directly in front of the column.

The thoracic aorta has a curved shape that faces forward, and has small branches. It has a radius of approximately 1.16 cm.^[1]

Structure

The thoracic aorta is part of the aorta, which has different parts named according to their structure or location. The thoracic aorta is a continuation of the descending aorta and becomes the abdominal aorta when it passes through the diaphragm. The initial part of the aorta, the ascending aorta, rises out of the left ventricle, from which it is separated by the aortic valve. The two coronary arteries of the heart arise from the aortic root, just above the cusps of the aortic valve. The aorta then arches back over the right pulmonary artery. Three vessels come out of the aortic arch: the brachiocephalic artery, the left common carotid artery, and the left subclavian artery. These vessels supply blood to the head, neck, thorax and upper limbs.

Behind the thoracic aorta is the vertebral column and the azygos vein. To the right is the hemiazygos veins and thoracic duct, and to the left is the left pleura and lung. In front of the thoracic aorta lies the root of the left lung, the pericardium, the esophagus, and the diaphragm.

The esophagus, which is covered by a nerve plexus lies to the right of the thoracic aorta. Lower, the esophagus passes in front of the aorta, and ultimately is situated on the left.

Function

The aorta is an artery that conveys oxygenated blood from the heart to other parts of the body. It is one of the largest arteries in the body.^{[citation needed]} The aorta gives off several paired branches as it descends. In descending order, these include the

Bronchial arteries
Mediastinal arteries
Esophageal arteries
Pericardial arteries
Superior phrenic arteries

Note: The posterior intercostal arteries are branches that originate throughout the length of the posterior aspect of the thoracic aorta.

Clinical significance

Aortic dissection

Additional images

Transverse section of thorax, showing relations of pulmonary artery.
The arch of the aorta, and its branches.
Schematic of the thoracic aorta, showing major branches

References

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

^ Solutions to the Van der Pol Equation: a Model of Aortic Blood Flow

External links

UCC

UpToDate Contents

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English Journal

Association of aortic wall thickness on contrast-enhanced chest CT with major cerebro-cardiac events.

Tresoldi S1, Di Leo G2, Zoffoli E3, Munari A4, Primolevo A4, Cornalba G5, Sardanelli F6.
Acta radiologica (Stockholm, Sweden : 1987).Acta Radiol.2014 Nov;55(9):1040-9. doi: 10.1177/0284185113513978. Epub 2013 Nov 29.
BACKGROUND: There is a significant association between aortic atherosclerosis and previous major cardiovascular events. Particularly, thoracic aortic atherosclerosis is closely related to the degree of coronary and carotid artery disease. Thus, there is a rationale for screening the thoracic aorta i
PMID 24292898

Aortic dissection one year after aortic valve replacement.

Behranwala AA1, Handa SR2, Mehta NP3.
Asian cardiovascular & thoracic annals.Asian Cardiovasc Thorac Ann.2014 Nov;22(9):1099-102. doi: 10.1177/0218492313493793. Epub 2013 Oct 18.
Acute aortic dissection after aortic valve replacement is rare. A 57-year-old man presented with an acute type A aortic dissection 1 year after aortic valve replacement, which originated from the previous aortotomy site. He underwent a Bentall procedure. Postoperatively, he developed complete heart
PMID 24887849

Expression of sarco (endo) plasmic reticulum calcium ATPase (SERCA) system in normal mouse cardiovascular tissues, heart failure and atherosclerosis.

Lipskaia L1, Keuylian Z2, Blirando K3, Mougenot N4, Jacquet A4, Rouxel C3, Sghairi H5, Elaib Z5, Blaise R3, Adnot S6, Hajjar RJ7, Chemaly ER8, Limon I3, Bobe R9.
Biochimica et biophysica acta.Biochim Biophys Acta.2014 Nov;1843(11):2705-18. doi: 10.1016/j.bbamcr.2014.08.002. Epub 2014 Aug 7.
The sarco(endo)plasmic reticulum Ca(2+)ATPases (SERCA) system, a key regulator of calcium cycling and signaling, is composed of several isoforms. We aimed to characterize the expression of SERCA isoforms in mouse cardiovascular tissues and their modulation in cardiovascular pathologies (heart failur
PMID 25110346

Related Pictures

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関連記事	「thoracic」「par」「Thoracica」「aortae」

「thoracic」

Thoracic aorta
	The thoracic aorta, viewed from the left side.
	Histopathological image of dissecting aneurysm of thoracic aorta in a patient without evidence of Marfan's trait. The damaged aorta was surgically removed and replaced by artificial vessel. Victoria blue & HE stain.
Details
Latin	pars thoracica aortae, aorta thoracalis
Source	descending aorta
Branches	bronchial arteries, esophageal arteries, posterior intercostal arteries, abdominal aorta
Identifiers
Gray's	p.598
MeSH	A07.231.114.056.372
Dorlands; /Elsevier	p_07/12617966
TA	A12.2.11.001
FMA	3786
	Anatomical terminology