portal venous system

For a vein that connects two systems of capillary beds see portal venous system.

Secondly, the anterior pituitary is supplied by a low pressure portal venous system.

Both capillary beds and the blood vessels that connect them are considered part of the portal venous system.

Venous drainage is to the portal venous system.

A portal venous system is a series of veins or venules that directly connect two capillary beds.

Portal hypertension is an increase in the blood pressure within a system of veins called the portal venous system.

The portal venous system has several anastomoses with the systemic venous system.

It is a major component of the hepatic portal system, one of only two portal venous systems in the body.

"Sappey's veins": another name for paraumbilical veins of the accessory portal venous system.

Unqualified, "portal venous system" often refers to the hepatic portal system.

This spares the portal venous system from high pressure which can cause esophageal varices, caput medusae, and hemorrhoids.

The present investigation is the first report of radionuclide angiography specifically used to assess the patency/occlusion of the portal venous system.

Anorectal varices due to increased portal hypertension (blood pressure in the portal venous system) may present similar to hemorrhoids but are a different condition.

Arterial supply is by the Inferior mesenteric artery, and venous drainage is to the portal venous system.

It is essential to distinguish between air in the biliary tree from air in the portal venous system in making a diagnosis of pneumobilia.

Portal venous systems are considered venous because the blood vessels that join the two capillary beds are either veins or venules.

GnRH is secreted by the hypothalamus in pulses and travels to the anterior pituitary gland through a portal venous system.

It has neurons which generate and release pulses of GnRH into the portal venous system of the pituitary gland.

Consequently, defining the patency or occlusion of the portal venous system is equally important in pretransplant assessment and in post-transplant graft dysfunction.

Blood from the portal venous system may be shunted through the periumbilical veins and ultimately to the abdominal wall veins, manifesting as caput medusa.

Rather, it is part of a portal venous system that delivers venous blood into another capillary system, namely the hepatic sinusoids of the liver.

Nevertheless, at a % PV flow of below 20%, radionuclide angiography allowed a clear distinction to be made between patients with a patient and obstructed portal venous 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.

Firstly, TIPSS avoids a general anaesthetic, laparotomy, and disruption of the hepatic portal venous system that may adversely affect subsequent hepatic transplantation.