Hepatic portal system

Hepatic portal system

 

Hepatic portal system

 

The liver is the largest and heaviest gland in the human body, which is responsible for protein production, excretion of toxins and storage of sugar, fat, etc. But the liver has a different function from other organs in the body, and that is that all the blood that leaves our digestive system enters the liver through a vein called the portal vein and It divides into branches in the liver, and after reconnecting its branches, it forms a large vein that enters the right atrium of the heart. The portal vein set and its branches inside the liver are called the "hepatic portal system".

The liver portal system is very important. Port system diseases and increased portal vein blood pressure can seriously endanger our health. In this article, we will talk more about the liver port system.

 

 

What is the function of the liver port system?

Liver anatomy

The umbilicus of the liver

What is meant by triad port?

What is a Portal hypertension?

Causes of Portal hypertension

 

 

What is the function of the liver port system?

The hepatic port system is made up of the portal vein and its branches. The portal vein brings blood out of the spleen, pancreas, stomach, esophagus and intestines into the liver to be refined and prepared before entering the heart. The portal vein provides the liver with the carbohydrates absorbed from the intestines, which are the fuel for the liver.

 It is better to get a little familiar with the anatomy of the liver to understand the liver port system better.

 

 

Liver anatomy:

The liver has four lobes (parts). The thin tissue (connective tissue) that divides the liver into four lobes creates smaller divisions inside each lobe, called the lobes of the liver (lobules). The area of ​​the liver that is located in the lower part and where arteries and nerves enter the liver is called the liver umbilicus.

 

The liver lobules under the microscope are polygonal, that are arranged side by side. In the figure below, you can see a number of polygonal lobules of the liver together. The liver lobule is made up of cell plates called hepatocytes and in the center of each hepatic lobule is the central or central vein. At each apex of this irregular polygon (the liver lobule); There is a triple set called the port triad.

 

In fact, the liver cells or hepatocytes that are in the lobule are located next to very, very thin branches of the arteries, and their job is to filter the blood inside these narrow arteries. These very delicate vascular bifurcations of hepatocytes are called sinusoids.

 

 

The umbilicus of the liver:

Two blood vessels enter the umbilicus of the liver:

 

One is the portal vein, which we say carries blood that collects from the gastrointestinal tract (from the end of the esophagus to the anus) and enters the liver for purification and preparation, and the second is the hepatic artery, which contains oxygenated blood to keep the liver alive.

 

Both of these vessels begin to divide inside the liver and eventually attach to sinusoids and hepatocytes. Hepatocytes consume the oxygenated blood in the sinusoids and process and purify the blood from the gastrointestinal tract.

 

The blood that comes out of the hepatocytes enters the thin vessels that connect and form a single vein called the hepatic vein. This vein eventually flows into the great inferior vena cava and travels to the heart.

 

 

What is meant by triad port?

A set of three numbers is located at the apex of the lobules of the liver and is called the triad port, which includes the following:

 

  • A small branch of the port vein
  • A small branch of the hepatic artery
  • A small branch of the bile duct

 

 

What is a Portal hypertension?

Hypertension of the hepatic portal vein is called hypertension portal, which is accompanied by the following symptoms:

 

  • Gastrointestinal bleeding (black stools and foul-smelling bloody vomit)
  • Abdominal ascites (accumulation of fluid in the abdominal space)
  • Decreased level of consciousness due to liver dysfunction (Hepatic Encephalopathy)
  • Decreased platelet count and white blood cells

 

 

Causes of Portal hypertension:

Causes of port hypertension are divided into the following types:

 

  • Disorders that originate outside the liver, such as :

Clot formation in the portal vein

  • Disorders that originate in the liver, such as:

Congenital liver fibrosis

Sarcaidosis (a disease associated with the growth of inflammatory cells)

Lymphomas

Leishmaniasis parasite

Cirrhosis of the liver (the most common cause of portal hypertension)

  • Budd–Chiari syndrome (obstruction of the outflow veins of the liver)
  • Right heart failure
  • And fistulas and other vascular disorders (Arterio portal fistula or malformation)

Latest articles

...

submandibular gland swollen and painful

Have you ever heard the term sialadenitis? If you have recently noticed swelling of the submandibular glands, if you are looking for possible causes of swelling of the submandibular glands, read the following. Salivary gland swelling is called sialadenitis by doctors. Salivary gland secretions are necessary to moisten the mouth and throat and start digesting food.

...

sudden feeling of passing out anxiety

If you have experienced sudden stress and anxiety, if you want to know the causes of sudden filling out passing anxiety, Read more Often dizziness is associated with anxiety under the following headings Wooziness Light headedness

...

how get smell back after covid

How to restore a disturbed sense of smell following Covid19? Is there a way to speed up the olfactory recovery following Covid19? What are the ways to restore the sense of smell following Covid19? If you are one of those people who suffer from a sense of smell following a new coronavirus infection and are looking for a way to restore your sense of smell, read on.

...

Signs of a blood clotting disorder

If you want to know what signs and symptoms are associated with blood clots If you want to get acquainted with the signs and symptoms of blood clots. Read more What is a blood clot? What are the symptoms of a blood clot? What are the risks of a blood clot? What are the possible side effects of blood clots in the body? Why do blood clots form? Blood clots can be a sign and a symptom of what disorder and disease.

...

Sharp pulling pain in belly button

If you have sharp pain around the umbilicus (pre-umbilical). Read more. What causes sharp and pulling-like pain around the belly button?

share this content in :
Address: 393 University Avenue,Suite 200,Toronto ON MG5 2M2,CANADA
Email: info@MarsoClinic.com

Phone: +1(647)303 0740

All Rights Reserved © By MarsoClinic

Terms of Use
-->

Our company

Advisory board
Safety
Advisory board
About

Our products

Your Healthy Gut
Food intolerance
Constipation
View All

Community

Your Healthy Gut
Food intolerance
Constipation
View All

Legal

Your Healthy Gut
Food intolerance
Constipation
View All
logo-1 logo-2 logo-3 logo-foot  logo-4 logo-5 logo-6

Address: 393 University Avenue,Suite 200,Toronto ON MG5 2M2,CANADA

Email: info@MarsoClinic.com

Phone: +1(647)303 0740

All Rights Reserved © By MarsoClinic

Terms of Use