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

Describe the several steps by allosteric inhibition, Which of the following...

Which of the following are features of allosteric inhibition? During the infection, there are many different environments that P. multocida will encounter. In order to cause an inf

How different are taenia solium and taenia saginata, Q. Concerning their re...

Q. Concerning their respective intermediate hosts how different are Taenia solium and Taenia saginata? The midway hosts of the Taenia solium are pigs and the intermediate hosts

Conjugation – protozoan, Conjugation – Protozoan Conjugation is charac...

Conjugation – Protozoan Conjugation is characteristic of ciliates. The details vary from species to species. The general features can be observed in Paramecium sps. which has

Excretory system - uriniferous tubule, URINIFEROU S TUBULE - Unit of...

URINIFEROU S TUBULE - Unit of kidney. 3-5 cm. long (30 mm). Total length of nephrons is 65 km. A tubule consists of - 1 .       Malpighian capsule           (

Determine the process of rna editing, Which of the following is a true stat...

Which of the following is a true statement regarding the process of RNA editing? A. RNA editing alters the sequence of the mRNA message thereby permitting for an enhance in pro

Write the definition of counselling, Q. Write the definition of counselling...

Q. Write the definition of counselling? The counselling process, involves various steps in a sequence as given below: 1. Rapport-Building 2. Locating the Problem 4. Pl

Female reproductive system - external genitalia, EXTERNAL GENITALIA - ...

EXTERNAL GENITALIA - Vestibule is covered by 2 pairs of lips labia majoris and labia minoris. At the anterior junction of labia minoris a small erectile clitoris presen

What volume of water to make solution, You need to prepare 500 ml of a solu...

You need to prepare 500 ml of a solution containing 10 mM Tris, 0.15 M NaCl and 1 mg/ml SDS. At your work disposal are stock solutions containing 1 M Tris, 2.5M NaCl and 10% (w/v)

Define sporangiophore - types of hyphae, Define Sporangiophore - Types of H...

Define Sporangiophore - Types of Hyphae? Sporangiophore - Tufts of special, erect unbranched, hyphae growing in air arise from stolon just opposite to rhizoids. These are s

Different from all the other cellular microbes, How are the bacteria and th...

How are the bacteria and the archaea different from all the other cellular microbes? -They have cell walls? -They can move? -They reproduce asexually? -They have no nucleus?

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