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 the structure and functions of kidney, Explain the Structure and Fu...

Explain the Structure and Functions of Kidney You would have got a clear idea as to where the kidneys are situated. Yes, the kidneys are located in the posterior part of the ab

How is the blood typing concerning the abo system, How is the blood typing ...

How is the blood typing concerning the ABO system and the Rh usually done? In the blood typing for the ABO system and the Rh system a blood sample is collected from the person

Factors influencing efficiency of bioconversion -carotenoids, Define Factor...

Define Factors influencing the efficiency of bioconversion? amount of provitamin A presented to the 'cell, differential conversion by stereoisomeric form, and Vit

What is the genotype of each parent cat, Long-hair in cats is due to a rece...

Long-hair in cats is due to a recessive long allele, l. Black cats are due to a recessive agouti allele, a. A short-haired tabby cat is crossed to a long-haired tabby cat, and they

State the principles of behaviour change communication, Principles of behav...

Principles of behaviour change communication - BCC should be integrated with program goals from the starting. BCC is a necessary part of diabetes prevention, care and support p

Nursing assessment of thalassemia patient, Nursing Assessment  If you ...

Nursing Assessment  If you observe a child of thalassemia major you can identify the following clinical  manifestations:  Anaemia with haemoglobin level of 3 to 8 gm per ce

What is transgenic animal, Question 1 Write a short note on the following- ...

Question 1 Write a short note on the following- Transfection Synthetic seeds Transgenic crops Agrometerology Question 2 Describe any 5 screening techniques use

How many atp molecules are made after glycolysis, Q. How many ATP molecules...

Q. How many ATP molecules are made after glycolysis? Glycolysis is a process similar to glucose degradation in fermentation it produces final balances two molecules of ATP for

Minerals requirements during congestive cardiac failure, Q. Minerals requir...

Q. Minerals requirements during congestive cardiac failure? Minerals: Since sodium and potassium are the major electrolytes associated with oedema, it is important that sodium

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