17th October 2019

wikipedia

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What is the purpose of the portal system?

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Function. The portal venous system is responsible for directing blood from parts of the gastrointestinal tract to the liver. Substances absorbed in the small intestine travel first to the liver for processing before continuing to the heart.

Besides, what is portal venous?

The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver.

What is a portal system in the human body?

The hepatic portal system is a series of veins that carry blood from the capillaries of the stomach, intestine, spleen, and pancreas to capillaries in the liver. It is part of the body's filtration system. The hepatic portal system consists of: Hepatic portal vein: This is the main vein connected to the liver.

What is the meaning of portal circulation?

1. circulation of blood to the liver from the small intestine, the right half of the colon, and the spleen through the portal vein; sometimes specified as the hepatic portal circulation; 2.

1

What is the purpose of the pulmonary circulation?

The pulmonary circulation is the portion of the circulatory system which carries deoxygenated blood away from the right ventricle of the heart, to the lungs, and returns oxygenated blood to the left atrium and ventricle of the heart.

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Why does the liver receive oxygenated and deoxygenated blood?

The liver receives a blood supply from two sources. The first is the hepatic artery which delivers oxygenated blood from the general circulation. The second is the hepatic portal vein delivering deoxygenated blood from the small intestine containing nutrients.

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What makes the portal vein?

The 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 portal vein cause considerable illness and death.

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What is portal circulation and where is it found?

Circulation of blood to the liver from the small intestine, the right half of the colon, and the spleen through the portal vein; sometimes specified as the hepatic portal circulation.

5

What is the purpose of the hypophyseal portal system?

The hypophyseal portal system is a system of blood vessels in the microcirculation at the base of the brain, connecting the hypothalamus with the anterior pituitary. Its main function is to quickly transport and exchange hormones between the hypothalamus arcuate nucleus and anterior pituitary gland.

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What is the portal system in kidney?

A renal portal system is a portal venous system found in all living vertebrates except for hagfish, lampreys, and mammals. Its function is to move blood from the renal glomeruli to the peritubular plexus that surround the proximal and distal convoluted tubules.

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Where are the portal systems in the body?

circulatory system. Lower vertebrates have two so-called portal systems, areas of the venous system that begin in capillaries in tissues and join to form veins, which divide to produce another capillary network en route to the heart. They are called the hepatic (liver) and renal (kidneys) portal systems.

8

What is the definition of hepatic?

Liver cysts (also called hepatic cysts) are fluid-filled sacs that occur in the liver of roughly 5% of the population. They are usually asymptomatic and often discovered by chance during an abdominal imaging procedure, like computed tomography (CT) or magnetic resonance imaging (MRI).

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What is the definition of hepatic portal system?

medical Definition of hepatic portal system. : a group of veins that carry blood from the capillaries of the stomach, intestine, spleen, and pancreas to the sinusoids of the liver.

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What is a portal system in the circulatory system?

In the circulatory system of animals, a portal venous system occurs when a capillary bed pools into another capillary bed through veins, without first going through the heart. Both capillary beds and the blood vessels that connect them are considered part of the portal venous system.

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What is the function of the hepatic portal system vein?

The hepatic portal system is a series of veins that carry blood from the capillaries of the stomach, intestine, spleen, and pancreas to capillaries in the liver. It is part of the body's filtration system.

12

What is the function of the hepatic portal system?

The hepatic portal system is the system of veins comprising the hepatic portal vein and its tributaries. It is responsible for directing blood from parts of the gastrointestinal (GI) tract to the liver. Substances absorbed in the small intestine travel first to the liver for processing before continuing to the heart.

13

How does the myocardium receive oxygenated blood?

The myocardium receives its oxygen and nutrients from the coronary arteries. The coronary arteries lie on the outside of the heart and supply oxygenated blood to the heart tissue.

14

What is a portal account?

1) Portal is a term, generally synonymous with gateway, for a World Wide Web site that is or proposes to be a major starting site for users when they get connected to the Web or that users tend to visit as an anchor site. There are general portals and specialized or niche portals.

15

What is the function of the renal circulation?

The renal circulation supplies the blood to the kidneys via the renal arteries, left and right, which branch directly from the abdominal aorta. Despite their relatively small size, the kidneys receive approximately 20% of the cardiac output.

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What is meant by the term portal circulation?

circulation of blood to the liver from the small intestine, the right half of the colon, and the spleen through the portal vein; sometimes specified as the hepatic portal circulation; 2.

17

What are the receptors found on the carotid sinus that monitors blood pressure?

Special pressure sensors called baroreceptors can detect arterial blood pressure; they are located in the carotid sinus, which is intimately associated with each carotid artery high in the neck, and in a group of specialized cells in the left atrium of the heart.

18

What is the fetal circulation?

Anatomical terminology. In animals that give live birth, the fetal circulation is the circulatory system of a fetus. The term usually encompasses the entire fetoplacental circulation, which includes the umbilical cord and the blood vessels within the placenta that carry fetal blood.

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What is meant by Portal Software?

Portal software is a type of development tool used to create a portal (starting point) on a company's intranet so that employees can find a centralized starting place for access to consolidated enterprise-related functions, such as e-mail, customer relationship management (CRM) tools, company information, workgroup

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