Portal hypertension, Biology

Assignment Help:

Portal Hypertension:

If you review the portal circulation you may recall that normal blood flow to and from the liver depends on proper functioning of  the portal vein, the hepatic artery and the hepatic veins. Disease process that damage or alter the blood flow through the liver or its major vessels are responsible for development of portal hypertension. Normal portal pressure is 5 to 10 mm/Hg and portal hypertension exists when this pressure rises. Let us define portal hypertension. 

Definition 

When the pressure in the uortai system increases or rise above 10 mm/Hg due to obstruction of  any major portion of  portal and hepatic venous bed and collaterals form as a result of  poor blood flow through major venous channels. The spleen and other organs that empty into portal system also begin to undergo the effects of congestion. 

The portal hypertension may be of  two types. 

i)  Intrahepatic portal hypertension 

ii)  Extrahepatic  portal hypertension  


Related Discussions:- Portal hypertension

Explain thermal destruction of enzymes during sterilization, Explain about ...

Explain about Thermal Destruction of Enzymes during Sterilization? Before we move on to canning, we need to emphasize here that like thermal destruction of microorganisms, ther

What are integral membrane proteins, Membrane proteins are classify as eith...

Membrane proteins are classify as either integral (intrinsic) or peripheral (extrinsic) depending on how tightly they are linked with membrane. The Integral membrane proteins are s

Cyanmethaemoglobin standard - haemoglobin content in blood, Define Cyanmeth...

Define Cyanmethaemoglobin Standard - Haemoglobin Content in Blood? Certified standard haemoglobin solution may be obtained from certified or reputed laboratory supply firms. St

Pluricellular organisms are formed by serial mitosis, Q. From the zygote, p...

Q. From the zygote, pluricellular organisms are formed by serial mitosis. Would this formation be possible if each cell made by mitosis had an identical life in relation to its ant

Explain the metabolic aberrations of underweight, Explain the Metabolic Abe...

Explain the Metabolic Aberrations of Underweight? When energy intake falls below the minimal requirements, the body responds with an orderly physiologic adaptation involving th

Magnitude of healthcare expenditure, Normal 0 false false f...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Craninal nerves, Craninal nerves: Cranial nerves take their origin f...

Craninal nerves: Cranial nerves take their origin from different areas of brain  Some of them are sensory, some are motor and a few are mixed nerves. There are 12 pair

Explain the identification of fungi and yeasts, Explain the Identification ...

Explain the Identification of Fungi and Yeasts? In this we learnt about different staining techniques used to visualize bacterial cell morphology. What about identification tec

Genomic dna fragments, You have an extensive library of genomic DNA fragmen...

You have an extensive library of genomic DNA fragments, prepared by the use of restriction nucleases. You know their sequences and sizes and you have an assay to reliably separate

Endocrine glands - placenta, PLACEN T A - Placenta is the intimate...

PLACEN T A - Placenta is the intimate connection between the foehls and the uterine wall of the mother to exchange the materials. Placenta is a tempormy endocrine gland

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd