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

Is this the same thing as tonicity, These labs discuss the principle of osm...

These labs discuss the principle of osmolarity, which is defined as the total number of solute particles in 1 L of solution. Is this the same thing as tonicity? Explain your answer

Most abundant form under which nitrogen is found in nature, Q. What is the ...

Q. What is the most abundant form under which nitrogen is found in nature? The major abundant nitrogen-containing molecule found in nature is molecular nitrogen (N2). The air i

What is osmosis, What is Osmosis ? Osmosis :  Osmosis refers to the...

What is Osmosis ? Osmosis :  Osmosis refers to the diffusion of water across a semi-permeable membrane from an area of higher concentration of water to an area of lower con

Pollution - environmental pollution, Pollution - Environmental Pollution ...

Pollution - Environmental Pollution Pollution refers to any undesirable change in the physical, chemical or biological characteristics of our environment, i.e. air, water and

How is water importance to life, How is water's importance to life reflecte...

How is water's importance to life reflected in the normal range of internal pH values that living things are likely to have?

Composed of only glucose monomers, Which of the following is composed of ON...

Which of the following is composed of ONLY glucose monomers? (mark all that apply) Select one or more: a. Starch b. glycogen c. Maltose d. chitin e. Cellulose

Explain the treatment of lyme disease, Treatment of Lyme Disease Lyme d...

Treatment of Lyme Disease Lyme disease in North America is caused by the spirochete  Borrelia burgdorferi, which is transmitted to humans by Ixodes scapularis or pacificus tick

What are three main problems with having only two kingdoms, What are three ...

What are three main problems with having only two kingdoms There are three main problems with having only two kingdoms. The first problem concerns the unicellular flagellates

Explain the principles of taxonomy, Explain the Principles of Taxonomy? ...

Explain the Principles of Taxonomy? The goal of taxonomy is to develop a workable classification that reflects evolutionary relationships and provides identification and no

Rough and smooth endoplasrnic reticulum, Rough and Smooth Endoplasrnic Reti...

Rough and Smooth Endoplasrnic Reticulum (RER and SER) ER is differentiated into two regions, granular or rough endoplasrnic reticulum (RER) and agranular or smooth endoplasrni

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