WordNet

turn or go to the port or left side, of a ship; "The big ship was slowly porting"
an opening (in a wall or ship or armored vehicle) for firing through (同)embrasure, porthole
sweet dark-red dessert wine originally from Portugal (同)port wine
a place (seaport or airport) where people and merchandise can enter or leave a country
located on the left side of a ship or aircraft (同)larboard
bring to port; "the captain ported the ship at night"
carry or hold with both hands diagonally across the body, especially of weapons; "port a rifle"
carry, bear, convey, or bring; "The small canoe could be ported easily"
drink port; "We were porting all in the club after dinner"
land at or reach a port; "The ship finally ported"
modify (software) for use on a different machine or platform
put or turn on the left side, of a ship; "port the helm"
make a veinlike pattern
any of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other plant organ (同)nervure
one of the horny ribs that stiffen and support the wing of an insect (同)nervure
a layer of ore between layers of rock (同)mineral vein
a blood vessel that carries blood from the capillaries toward the heart; "all veins except the pulmonary vein carry unaerated blood" (同)vena, venous blood vessel
a distinctive style or manner; "he continued in this vein for several minutes"
a grand and imposing entrance (often extended metaphorically); "the portals of the cathedral"; "the portals of heaven"; "the portals of success"
having or showing markings that resemble veins (同)venose, veinlike

PrepTutorEJDIC

〈C〉〈U〉『港』 / 〈C〉『港町』,『港市』
(船の)左舷(さげん);(飛行機の)(機首に向かって)左側 / 左舷の,左側の / 〈かじなど〉‘を'左舷に向ける
=porthole / (船の)荷役口 / (装甲車・城壁などの)銃眼,砲門
ポートワイン(ポルトガル原産の甘口のぶどう酒で深紅色)
控え銃(つつ)の姿勢(銃をからだの正面に斜めに保持し先端が左肩の近くにくる) / 〈銃など〉‘を'控え銃にする
〈C〉『静脈』 / 〈C〉(植物の)葉脈;(昆虫の)翅脈;(石の)石理;(木の)木目 / 〈C〉岩脈,鉱脈 / 〈U〉《しばしば a vein》(…の)傾向,性質《+of+名》 / 〈U〉《the vein》(…に対する)気分,気持ち《+for+名(doing)》
〈C〉(堂々とした)門,入り口 / 《複数形》《文》(大きな建物の)正門,表玄関 / 《複数形》《文》(…の)発端《+『of』+『名』》
しも(筋)のある,筋のついた
(葉・昆虫の羽などの)脈模様,すじ

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/02/21 22:07:15」(JST)

wiki en

This page is the redirect for portal vein. For a vein that connects two systems of capillary beds see portal venous system.

The hepatic portal vein is a blood vessel that conducts blood from the gastrointestinal tract and spleen to the liver. This blood is rich in nutrients that were extracted from food, and the liver processes these nutrients; it also filters toxins that may have been ingested with the food. The liver receives about 75% of its blood through the hepatic portal vein, with the remainder coming from the hepatic artery proper. The blood leaves the liver to the heart in the hepatic veins.

The hepatic portal vein is not a true vein, because it conducts blood to capillary beds in the liver and not directly to the heart. It is a major component of the hepatic portal system, one of only two portal venous systems in the body. The other is the hypophyseal portal system.

The hepatic portal vein is usually formed by the confluence of the superior mesenteric and splenic veins and also receives blood from the inferior mesenteric, gastric, and cystic veins.

Conditions involving the hepatic portal vein cause considerable illness and death. An important example of such a condition is elevated blood pressure in the hepatic portal vein. This condition, called portal hypertension, is a major complication of cirrhosis.

Portal vein

Anatomy

Tributaries of the hepatic portal vein^[1]
Splenic vein Superior mesenteric vein Inferior mesenteric vein Gastric veins Cystic vein

Measuring approximately 8 cm (3 inches) in adults,^[2] the hepatic portal vein is located in the right upper quadrant of the abdomen, originating behind the neck of the pancreas.^[3]

In most individuals, the hepatic portal vein is formed by the union of the superior mesenteric vein and the splenic vein.^[4] For this reason, the hepatic portal vein is occasionally called the splenic-mesenteric confluence.^[3] Occasionally, the hepatic portal vein also directly communicates with the inferior mesenteric vein, although this is highly variable. Other tributaries of the hepatic portal vein include the cystic and gastric veins.^[1]

Immediately before reaching the liver, the portal vein divides into right and left. It ramifies further, forming smaller venous branches and ultimately portal venules. Each portal venule courses alongside a hepatic arteriole and the two vessels form the vascular components of the portal triad. These vessels ultimately empty into the hepatic sinusoids to supply blood to the liver.^[1]

Portacaval anastomoses

The portal venous system has several anastomoses with the systemic venous system. In cases of portal hypertension these anastamoses may become engorged, dilated, or varicosed and subsequently rupture.

Accessory hepatic portal veins

Accessory hepatic portal veins are those veins that drain directly into the liver without joining the hepatic portal vein. These include the paraumbilical veins as well as veins of the lesser omentum, falciform ligament, and those draining the gallbladder wall.^[3]

Physiology

The hepatic portal vein and hepatic arteries form the liver's dual blood supply. Approximately 75% of hepatic blood flow is derived from the hepatic portal vein, while the remainder is from the hepatic arteries.^[3]

Unlike most veins, the hepatic portal vein does not drain into the heart. Rather, it is part of a portal venous system that delivers venous blood into another capillary system, namely the hepatic sinusoids of the liver. In carrying venous blood from the gastrointestinal tract to the liver, the hepatic portal vein accomplishes two tasks; namely, it supplies the liver with metabolic substrates and it ensures that substances ingested are first processed by the liver before reaching the systemic circulation. This accomplishes two things. First, possible toxins that may be ingested can be detoxified by the hepatocytes before they are released into the systemic circulation. Second, the liver is the first organ to absorb nutrients just taken in by the intestines. After draining into the liver sinusoids, blood from the liver is drained by the hepatic vein.

Role in disease

Portal hypertension

Main article: Portal hypertension

Increased blood pressure in the portal vein, called portal hypertension, is a major complication of liver disease, most commonly cirrhosis.^[5] Stigmata of portal hypertension include those of chronic liver disease: ascites, esophageal varices, spider nevi, caput medusae, and palmar erythema.^[6]

Pylephlebitis

Main article: Pylephlebitis

Pylephlebitis is infection of the hepatic portal vein, usually arising from an infectious intraabdominal process such as diverticulosis.^[7]^[8]

References

^ ^a ^b ^c Henry Gray (1901). Anatomy, Descriptive and Surgical (16 ed.). Philadelphia: Lea Brothers. pp. 619.
^ Harold M Chung; Chung, Kyung Won (2008). Gross anatomy. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins. pp. 208. ISBN 0-7817-7174-9.
^ ^a ^b ^c ^d Plinio Rossi; L. Broglia (2000). Portal Hypertension: Diagnostic Imaging and Imaging-Guided Therapy. Berlin: Springer. pp. 51. ISBN 3-540-65797-5.
^ Benjamin L. Shneider; Sherman, Philip M. (2008). Pediatric Gastrointestinal Disease. Connecticut: PMPH-USA. pp. 751. ISBN 1-55009-364-9.
^ Dooley, James; Sherlock, Sheila (2002). Diseases of the liver and biliary system. Oxford: Blackwell Science. ISBN 0-632-05582-0.
^ Key Topics in General Surgery (2 ed.). Informa Healthcare. 2002. ISBN 1-85996-164-9.
^ Plemmons RM, Dooley DP, Longfield RN (November 1995). "Septic thrombophlebitis of the portal vein (pylephlebitis): diagnosis and management in the modern era". Clin. Infect. Dis. 21 (5): 1114–20. doi:10.1093/clinids/21.5.1114. PMID 8589130.
^ Perez-Cruet MJ, Grable E, Drapkin MS, Jablons DM, Cano G (May 1993). "Pylephlebitis associated with diverticulitis". South. Med. J. 86 (5): 578–80. doi:10.1097/00007611-199305000-00020. PMID 8488411. http://meta.wkhealth.com/pt/pt-core/template-journal/lwwgateway/media/landingpage.htm?issn=0038-4348&volume=86&issue=5&spage=578.

Additional images

Human embryo with heart and anterior body-wall removed to show the sinus venosus and its tributaries.
The celiac artery and its branches; the stomach has been raised and the peritoneum removed.
The celiac ganglia with the sympathetic plexuses of the abdominal viscera radiating from the ganglia.
Horizontal disposition of the peritoneum in the upper part of the abdomen.
Inferior surface of the liver.
Section across portal triad of pig.
The pancreas and duodenum from behind.
The pancreatic duct.
Longitudinal section of a small portal vein and canal.
Liver and gallbladder
Posterior view of the abdominal viscera, showing arteries and veins around the pancreas and spleen.
Hepatic portal vein
portal vein

External links

SUNY Labs 38:12-0109 - "Stomach, Spleen and Liver: The Visceral Surface of the Liver"
SUNY Anatomy Image 7959
SUNY Anatomy Image 8565
SUNY Anatomy Image 8697
Cross section at UV pembody/body8a
Human anatomy at Dartmouth figures/chapter_30/30-2.HTM

UpToDate Contents

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1. 成人における急性門脈閉塞血栓症：臨床症状、診断、およびマネージメント acute portal vein thrombosis in adults clinical manifestations diagnosis and management
2. 成人における門脈血栓症の疫学および病因 epidemiology and pathogenesis of portal vein thrombosis in adults
3. 成人における慢性門脈血栓症：臨床症状、診断、および管理 chronic portal vein thrombosis in adults clinical manifestations diagnosis and management
4. 成人における門脈圧亢進症 portal hypertension in adults
5. Surgical resection of localized cholangiocarcinoma

English Journal

Methods to improve resectability of hepatocellular carcinoma.

Brouquet A, Andreou A, Shindoh J, Vauthey JN.SourceDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1484, 77030, Houston, TX, USA.
Recent results in cancer research. Fortschritte der Krebsforschung. Progrès dans les recherches sur le cancer.Recent Results Cancer Res.2013;190:57-67.
Liver resection is associated with prolonged survival in selected patients with hepatocellular carcinoma (HCC). Surgical resection of HCC may be decided on an individual basis according to the extent of the tumor and the severity of chronic liver disease. In patients with compensated cirrhosis, the
PMID 22941013

Changes in spleen volume after resection of hepatic colorectal metastases.

Jacobs KE, Visser BC, Gayer G.SourceStanford Medical School, Stanford University, Stanford, CA, USA.
Clinical radiology.Clin Radiol.2012 Oct;67(10):982-7. Epub 2012 May 16.
AIM: To identify and describe changes in spleen volume occurring in patients with colorectal metastases to the liver after partial hepatectomy.MATERIALS AND METHODS: Forty-one consecutive patients (20 men, 21 women) with histopathology-proven colorectal liver metastases who underwent partial hepatec
PMID 22608244

Japanese Journal

進行肝細胞癌に伴う下大静脈腫瘍栓,門脈腫瘍栓に対する放射線治療の有効性

小山幸法,波多野悦朗,田浦康二朗 [他]
肝臓 53(8), 486-493, 2012-08
NAID 40019387897

Blood flow in non-muscle tissues and organs during exercise : Nature of splanchnic and ocular circulation

Hayashi Naoyuki,Yamaoka-Endo Masako,Someya Nami [他]
The journal of physical fitness and sports medicine : JPFSM : official journal of the Japanese Society of Physical Fitness and Sports Medicine 1(2), 281-286, 2012-07
NAID 40019350762

Related Pictures

★リンクテーブル★

リンク元	「門脈」「PV」
拡張検索	「portal vein occlusion」
関連記事	「port」「portal」「vein」

「門脈」

Vein: Hepatic portal vein
	The portal vein and its tributaries. It is formed by the superior mesenteric vein and splenic vein. Lienal vein is an old term for splenic vein.
Latin	vena portae hepatis
Gray's	subject #174 681
Drains from	Gastrointestinal tract, spleen, pancreas
Source	splenic vein, superior mesenteric vein
Drains to	liver sinusoid
MeSH	Portal+Vein

　　[★]

英: portal vein PV
ラ: vena portae hepatis, vena portae

KH. 149,153,164

門脈の側副路

-門脈＆側副路
KH. 154
-門脈系の側副循環路
KH. 249
-門脈の側副路(門脈大静脈吻合)
N.302

側副路

1. 食道　：left gastric vein - esophageal venous plexus - azygos vein, hemiazygos vein
2. 臍傍　：paraumbilical vein - superior epigastric vein, inferior epigastric vein
3. 直腸　：superior rectal vein - middle rectal vein, inferior rectal vein
4. 腹膜後：colic vein, splenic vein - renal vein, veins of the posterior body wall

Henry Gray (1825-1861). Anatomy of the Human Body. 1918.

臨床関連

門脈閉塞

「PV」

　　[★]

「portal vein occlusion」

　　[★]

門脈閉塞

関: portal vein obstruction

「port」

　　[★]

n.

ポート、出入口

関: gateway

「portal」

　　[★]

adj.

門脈の

関: portal vein

「vein」

　　[★] 静脈

[grays-1] Henry Gray (1901). Anatomy, Descriptive and Surgical (16 ed.). Philadelphia: Lea Brothers. pp. 619.

[isbn0-7817-7174-9-2] Harold M Chung; Chung, Kyung Won (2008). Gross anatomy. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins. pp. 208. ISBN 0-7817-7174-9.

[phtn-3] Plinio Rossi; L. Broglia (2000). Portal Hypertension: Diagnostic Imaging and Imaging-Guided Therapy. Berlin: Springer. pp. 51. ISBN 3-540-65797-5.

[isbn1-55009-364-9-4] Benjamin L. Shneider; Sherman, Philip M. (2008). Pediatric Gastrointestinal Disease. Connecticut: PMPH-USA. pp. 751. ISBN 1-55009-364-9.

[isbn0-632-05582-0-5] Dooley, James; Sherlock, Sheila (2002). Diseases of the liver and biliary system. Oxford: Blackwell Science. ISBN 0-632-05582-0.

[isbn1-85996-164-9-6] Key Topics in General Surgery (2 ed.). Informa Healthcare. 2002. ISBN 1-85996-164-9.

[pmid8589130-7] Plemmons RM, Dooley DP, Longfield RN (November 1995). "Septic thrombophlebitis of the portal vein (pylephlebitis): diagnosis and management in the modern era". Clin. Infect. Dis. 21 (5): 1114–20. doi:10.1093/clinids/21.5.1114. PMID 8589130.

[pmid8488411-8] Perez-Cruet MJ, Grable E, Drapkin MS, Jablons DM, Cano G (May 1993). "Pylephlebitis associated with diverticulitis". South. Med. J. 86 (5): 578–80. doi:10.1097/00007611-199305000-00020. PMID 8488411. http://meta.wkhealth.com/pt/pt-core/template-journal/lwwgateway/media/landingpage.htm?issn=0038-4348&volume=86&issue=5&spage=578.

Vein: Hepatic portal vein

The portal vein and its tributaries. It is formed by the superior mesenteric vein and splenic vein. Lienal vein is an old term for splenic vein.
Latin	vena portae hepatis
Gray's	subject #174 681
Drains from	Gastrointestinal tract, spleen, pancreas
Source	splenic vein, superior mesenteric vein
Drains to	liver sinusoid
MeSH	Portal+Vein

匿名

検索

案内

案内

portal vein