外膜
WordNet
- any of a variety of loose fitting cloaks extending to the hips or knees
- an enveloping or covering membrane or layer of body tissue (同)tunica, adventitia
PrepTutorEJDIC
- チュニカ(古代ギリシア・ローマで男女が用いたひざまである半そでまたはそでなしの上着) / (ゆったりしたそでなしの)チューニック(婦人用スポーツ服,女子学生の制服などに用いる) / 《英》軍人・警官などが制服として着る一種の上着
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2016/02/10 10:57:13」(JST)
[Wiki en表示]
Tunica externa (vessels) |
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Section of a medium-sized artery.
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Details |
Identifiers |
Latin |
Tunica externa vasorum,
tunica adventitia vasorum |
Code |
TH H3.09.02.0.01009 |
Dorlands
/Elsevier |
t_22/12831733 |
TA |
A12.0.00.017 |
FMA |
45635 |
Anatomical terminology
[edit on Wikidata]
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The tunica externa (New Latin "outer coat"), also known as the tunica adventitia (or adventitia for short), is the outermost tunica (layer) of a blood vessel, surrounding the tunica media. It is mainly composed of collagen and, in arteries, is supported by external elastic lamina. The collagen serves to anchor the blood vessel to nearby organs, giving it stability.
The tunicae of blood vessels are three layers: an inner, middle, and outer layer that are called, respectively, the tunica intima, the tunica media, and the tunica externa (or tunica adventitia).
Contents
- 1 Pathology
- 2 Additional images
- 3 See also
- 4 References
- 5 External links
Pathology
A common pathological disorder concerning the tunica externa is scurvy, also known as vitamin C deficiency. Scurvy occurs because vitamin C is essential for the synthesis of collagen, and without it, the faulty collagen cannot maintain the vein walls and rupture, leading to a multitude of problems.
Additional images
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Transverse section through a small artery and vein of the mucous membrane of the epiglottis of a child. (Tunica adventitia is at 'a')
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Microphotography of arterial wall with calcified (violet colour) atherosclerotic plaque (haematoxylin & eosin stain)
See also
References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
External links
- Anatomy photo: Circulatory/vessels/vessels7/vessels4 - Comparative Organology at University of California, Davis - "Bird, vessels (LM, High)"
- Image at About.com
Arteries and veins
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Vessels |
Arteries
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- Nutrient artery
- Arteriole
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Capillaries
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- Types
- Continuous
- Fenestrated
- Sinusoidal
- Precapillary sphincter
- Precapillary resistance
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Veins
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- Vena comitans
- Superficial vein
- Deep vein
- Emissary veins
- Venous plexus
- Venule
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Lymph
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- Lymphatic vessel
- Lymph
- Lymph capillary
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Circulation |
Systemic
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Left heart → Aorta → Arteries → Arterioles → Capillaries → Venules → Veins → Vena cava → (Right heart)
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Pulmonary
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Right heart → Pulmonary arteries → Lungs → Pulmonary vein → Left heart
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Microanatomy |
- Tunica intima
- Endothelium
- Internal elastic lamina
- Tunica media
- Tunica externa
- Vasa vasorum
- Vasa nervorum
- Rete mirabile
- Circulatory anastomosis
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Index of the circulatory system
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Description |
- Anatomy
- Arteries
- head and neck
- arms
- chest
- abdomen
- legs
- Veins
- head and neck
- arms
- chest
- abdomen and pelvis
- legs
- Development
- Cells
- Physiology
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Disease |
- Congenital
- Neoplasms and cancer
- Lymphatic vessels
- Injury
- Vasculitis
- Other
- Symptoms and signs
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Treatment |
- Procedures
- Drugs
- beta blockers
- channel blockers
- diuretics
- nonsympatholytic vasodilatory antihypertensives
- peripheral vasodilators
- renin–angiotensin system
- sympatholytic antihypertensives
- vasoprotectives
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UpToDate Contents
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English Journal
- Nox and Inflammation in the Vascular Adventitia.
- Meijles DN1, Pagano PJ2.
- Hypertension.Hypertension.2016 Jan;67(1):14-9. doi: 10.1161/HYPERTENSIONAHA.115.03622. Epub 2015 Nov 9.
- PMID 26553230
- Carotid extramedial thickness is associated with local arterial stiffness in children.
- Cai TY1, Sullivan TR, Ayer JG, Harmer JA, Leeder SR, Toelle BG, Marks GB, Celermajer DS, Skilton MR; Childhood Asthma Prevention Study Team.
- Journal of hypertension.J Hypertens.2016 Jan;34(1):109-15. doi: 10.1097/HJH.0000000000000769.
- OBJECTIVES: Experimental evidence suggests that structural changes to the arterial adventitia may be a key vascular determinant of early arterial stiffening, although this has not been directly studied. Accordingly, we hypothesized that in young children, in whom this relationship would not be alter
- PMID 26575702
- Hemoglobin induces monocyte recruitment and CD163-macrophage polarization in abdominal aortic aneurysm.
- Rubio-Navarro A1, Amaro Villalobos JM1, Lindholt JS2, Buendía I1, Egido J3, Blanco-Colio LM1, Samaniego R4, Meilhac O5, Michel JB6, Martín-Ventura JL1, Moreno JA7.
- International journal of cardiology.Int J Cardiol.2015 Dec 15;201:66-78. doi: 10.1016/j.ijcard.2015.08.053. Epub 2015 Aug 6.
- BACKGROUND: Increased hemoglobin (Hb) accumulation was reported in abdominal aortic aneurysms (AAAs). CD163 is a macrophage receptor involved in tissue Hb clearance, however its role in AAA has not been reported. We investigated the role of Hb on monocyte recruitment and differentiation towards CD16
- PMID 26296046
Japanese Journal
- 体外式超音波検査による肝外胆管癌の右肝動脈および神経周囲浸潤診断能の検討
- 佐藤 恵美,西田 睦,工藤 悠輔,井上 真美子,表原 里実,平野 聡,河上 洋,工藤 大樹,三橋 智子,仲 知保
- 超音波検査技術 39(1), 22-30, 2014
- … The false negative subject of Arh was a micro invasion of the tunica adventitia of the RHA. …
- NAID 130004950063
- Histological Study on the Left Common Iliac Vein Spur
- Mitsuoka Hiroki,Ohta Takashi,Hayashi Shogo,Yokoi Toyoharu,Arima Takahiro,Asamoto Ken,Nakano Takashi
- Annals of Vascular Diseases 7(3), 261-265, 2014
- … Spurs were found in six cases of the 28 cadavers (21.4%) and they were classified into few different kinds of composition of endosporia, tunica media and adventitia. …
- NAID 130004691180
- 三岡 裕貴,太田 敬,林 省吾,横井 豊治,有馬 隆紘,浅本 憲,中野 隆
- 脈管学 53(April), 43-47, 2013
- 要 旨:左総腸骨静脈内にみられるspurの頻度および解剖学的,組織学的検討から,その形成機序につき検討した。対象とした解剖実習用の遺体28例中6例(21.4%)にspurを認めた。組織学的には,spurの辺縁に内膜と内弾性板を共通して有していたが,その内部構造にバリエーションが認められた。肉眼的には同様であると思われるspurの形成機序には先天性や圧迫などの複数の要因があると考えられた。
- NAID 130003378855
Related Links
- Medical Dictionary tunica adventitia tunica ad·ven·ti·ti·a (ād'věn-tĭsh'ē-ə) n. The outermost fibrous coat of a vessel or of an organ that is derived from the surrounding connective tissue. Also called membrana adventitia. The American ...
- tunica /tu·ni·ca/ (too´nĭ-kah) pl. tu´nicae [L.] a tunic; in anatomy, a general term for a membrane or other structure covering or lining a body part or organ. tunica adventi´tia the outer coat of various tubular structures, made up of ...
Related Pictures
★リンクテーブル★
[★]
- 英
- tunica adventitia (Z), outer membrane, adventitia
- ラ
- tunica externa, tunica adventitia
- 関
- 漿膜、血管、内膜、中膜。細胞壁
- 結合組織のみ
- 線維芽細胞、膠原線維、縦走する弾性線維 (HIS. 216)
- 周囲の結合組織に移行 (HIS. 216)