Portal circulation Health Dictionary

  1. Health Encyclopedia
  2. Portal Circulation

Portal Circulation: From 1 Different Sources

This is a type of circulatory bypass used when substances in blood or fluid need to be kept out of the general flow. A portal system begins in capillaries and ends in capillaries, and nothing leaves it undocumented. The hypothalamus sends hormones into the portal system between it and the pituitary, and the pituitary responds to it by secreting its own hormones, but dissolving the hypothalamus ones. Blood that leaves the intestinal tract, spleen, and pancreas (partially) goes into the liver’s portal system and does not leave that organ until it has been thoroughly screened and altered.
Health Source: Herbal Medical
Author: Health Dictionary

Portal Hypertension

Raised blood pressure in the PORTAL VEIN entering the LIVER. This results in increased pressure in the veins of the oesophagus and upper stomach and these grow in size to form varices – dilated tortuous veins. Sometimes these varices rupture, causing bleeding into the oesophagus. The raised pressure also causes ?uid to collect in the abdomen and form ASCITES. The commonest reason for portal hypertension is cirrhosis (?brosis) of the liver (see LIVER, DISEASES OF). THROMBOSIS in the portal vein may also be a cause. Treatment requires the cause to be tackled, but bleeding from ruptured vessels may be stopped by injecting a sclerosant or hardening solution into and around the veins. Sometimes a surgical shunt may be done to divert blood from the portal vein to another blood vessel.... portal hypertension

Portal System

A vein or collection of veins which ?nish at both ends in a bed of capillary blood vessels. An important example is the hepatic portal system, comprising the portal vein and its tributaries. Blood from the stomach, pancreas, spleen and intestines drains into the veins that join up to comprise the portal vein into the liver, where it branches into sinusoids.... portal system

Portal Vein

The vein which carries to the LIVER, blood that has been circulating in many of the abdominal organs. It is peculiar among the veins of the body in that it ends by breaking up into a capillary network instead of carrying the blood directly to the heart – a peculiarity which it shares only with certain small vessels in the kidneys. The PORTAL SYSTEM begins below in the haemorrhoidal plexus of veins around the lower end of the rectum; from this point, along the whole length of the intestines, the blood is collected into an inferior mesenteric vein upon the left, and a superior mesenteric vein upon the right side. The inferior mesenteric vein empties into the splenic vein, and the latter, uniting with the superior mesenteric vein immediately above the pancreas, forms the portal vein. The portal vein is joined by veins from the stomach and gallbladder, and ?nally divides into two branches which sink into the right and left lobes of the liver. (For their further course, see LIVER).

The organs from which the portal vein collects the blood are the large and small intestines, the stomach, spleen, pancreas, and gall-bladder.... portal vein

Diet - Heart And Circulation

It is now widely accepted that changes in diet and lifestyle can dramatically reduce the risk of heart disease. Use DIET – GENERAL as a base.

Unsaturated fatty acids, as in vegetable oils, should replace animal fats (saturated fatty acids) that increase deposits of cholesterol on the inner coat of arteries and encourage hardening. Vegetable oils contain lecithin – a homogeniser which thins and separates the cholesterol, sweeping it along through the bloodstream and preventing deposits to form on walls of the arteries.

A study on the European population has shown a strong link between oily fish consumption and a reduced risk of heart disease. Populations that eat a lot of fish, such as Greenland Eskimos (about 400g a day) and Japanese fishermen (about 200g a day) have low rates of heart disease.

Another study, by the Leiden University of the Netherlands, has found that men who ate more than 30g of fish per day were less than half as likely to die from coronary heart disease as those who ate no fish. A diet high in fish lowers plasma cholesterol, triglyceride and very low density lipoprotein levels and is of value in the treatment of hyperlipidaemia (abnormally high concentration of fats in the blood).

Indicated: Magnesium-containing foods, lecithin, Evening Primrose oil for gamma linoleic acid which is converted into prostaglandin E1 in the body and helps reduce high blood pressure and prevents platelet clumping. Coffee carries a risk factor and should be taken sparingly – alternatives: herbal teas Rutin, Lime flowers and others as available in bulk or tea-bags. Green grapes.

Supplements, daily: Vitamin C 1g; Vitamin E 400iu; Magnesium 300mg – 450mg for pregnant women and nursing mothers. Iodine. Chromium, Selenium. Garlic tablets/capsules – 2-3 at night.

Flora margarine is high in essential polyunsaturated fats – made from sunflower seed oil. Hay diet: good results reported. ... diet - heart and circulation

Circulation, Disorders Of

Conditions affecting blood flow around the body (see arteries, disorders of; veins, disorders of).... circulation, disorders of

Collateral Circulation

1. an alternative route provided for the blood by secondary vessels when a primary vessel becomes blocked. 2. the channels of communication between the blood vessels supplying the heart. At the apex of the heart, where the coronary arteries form *anastomoses, these are very complex.... collateral circulation

Portal

adj. 1. relating to the portal vein or system. 2. relating to a porta.... portal

Portal Image

an electronic image taken during radiotherapy treatment to verify the position of radiation beams.... portal image

Pulmonary Circulation

a system of blood vessels effecting transport of blood between the heart and lungs. Deoxygenated blood leaves the right ventricle by the pulmonary artery and is carried to the alveolar capillaries of the lungs. Gaseous exchange occurs, with carbon dioxide leaving the circulation and oxygen entering. The oxygenated blood then passes into small veins leading to the pulmonary veins, which leave the lungs and return blood to the left atrium of the heart. The oxygenated blood can then be pumped around the body via the *systemic circulation.... pulmonary circulation

Systemic Circulation

the system of blood vessels that supplies all parts of the body except the lungs. It consists of the aorta and all its branches, carrying oxygenated blood to the tissues, and all the veins draining deoxygenated blood into the vena cava. Compare pulmonary circulation.... systemic circulation

Fetal Circulation

Blood circulation in the fetus is different from the normal circulation after birth (see circulatory system). The fetus neither breathes nor eats. Therefore, oxygen and nutrients are obtained and waste products such as carbon dioxide are removed via the placenta. Fetal blood reaches the placenta through blood vessels in the umbilical cord. The maternal and fetal circulations are separated by a thin membrane in the placenta, which allows the exchange of nutrients and waste products.

The other fundamental difference in circulation is that most blood bypasses the lungs in the fetus through 2 special channels in the fetal heart.

Blood passes from the right atrium of the heart to the left atrium through the foramen ovale.

Another channel, known as the ductus arteriosus, allows blood to pass from the pulmonary artery to the aorta.

Both channels normally close after birth.

In rare cases, they fail to close, causing a congenital heart disorder (see heart disease, congenital).... fetal circulation

Circulation, Muscles And Joints:

Accumulation of toxins (M,S,B):

Angelica, white birch, carrot seed, celery seed, coriander, cumin, sweet fennel, grapefruit, juniper, lovage, parsley.

Aches and pains (M,C,B):

Ambrette, star anise, aniseed, French basil, West Indian bay, cajeput, calamintha, camphor (white), chamomile (German & Roman), coriander, eucalyptus (blue gum & peppermint), silver fir, galbanum, ginger, immortelle, lavandin, lavender (spike & true), lemongrass, sweet marjoram, mastic, mint (peppermint & spearmint), niaouli, nutmeg, black pepper, pine (longleaf & Scotch), rosemary, sage (clary & Spanish), hemlock spruce, thyme, turmeric, turpentine, vetiver.

Arthritis (M,S,C,B):

Allspice, angelica, benzoin, white birch, cajeput, camphor (white), carrot seed, cedarwood (Atlas, Texas & Virginian), celery seed, chamomile (German & Roman), clove bud, coriander, eucalyptus (blue gum & peppermint), silver fir, ginger, guaiacwood, juniper, lemon, sweet marjoram, mastic, myrrh, nutmeg, parsley, black pepper, pine (longleaf & Scotch), rosemary, Spanish sage, thyme, tumeric, turpentine, vetiver, yarrow.

Cellulitis (M,S,B):

White birch, cypress, sweet fennel, geranium, grapefruit, juniper, lemon, parsley, rosemary, thyme.

Debility/poor muscle tone (M,S,B):

Allspice, ambrette, borneol, ginger, grapefruit, sweet marjoram, black pepper, pine (longleaf & Scotch), rosemary, Spanish sage.

Gout (M,S,B):

Angelica, French basil, benzoin, carrot seed, celery seed, coriander, guaiacwood, juniper, lovage, mastic, pine (longleaf & Scotch), rosemary, thyme, turpentine.

High blood pressure & hypertension (M,B,V):

cananga, garlic, true lavender, lemon, sweet marjoram, melissa, clary sage, yarrow, ylang ylang.

Muscular cramp & stiffness (M,C,B):

Allspice, ambrette, coriander, cypress, grapefruit, jasmine, lavandin, lavender (spike & true), sweet marjoram, black pepper, pine (longleaf & Scotch), rosemary, thyme, vetiver.

Obesity (M,B):

White birch, sweet fennel, juniper, lemon, mandarin, orange (bitter & sweet).

Oedema & water retention (M,B):

Angelica, white birch, carrot seed, cypress, sweet fennel, geranium, grapefruit, juniper, lavage, mandarin, orange (bitter & sweet), rosemary, Spanish sage.

Palpitations (M):

Neroli, orange (bitter & sweet), rose (cabbage & damask), ylang ylang.

Poor circulation & low blood pressure (M,B):

Ambrette, Peru balsam, West Indian bay, benzoin, white birch, borneol, cinnamon leaf, coriander, cumin, cypress, eucalyptus blue gum, galbanum, geranium, ginger, lemon, lemongrass, lovage, neroli, niaouli, nutmeg, black pepper, pine (longleaf & Scotch), rose (cabbage & damask), rosemary, Spanish sage, hemlock spruce, thyme, violet.

Rheumatism (M,C,B):

Allspice, angelica, star anise, aniseed, Peru balsam, French basil, West Indian bay, benzoin, white birch, borneol, cajeput, calamintha, camphor (white), carrot seed, cedarwood (Atlas, Texas & Virginian), celery seed, chamomile (German & Roman), cinnamon leaf, clove bud, coriander, cypress, eucalyptus (blue gum & peppermint), sweet fennel, silver fir, galbanum, ginger, immortelle, juniper, lavandin, lavender (spike & true), lemon, lovage, sweet marjoram, mastic, niaouli, nutmeg, parsley, black pepper, pine (longleaf & Scotch), rosemary, Spanish sage, hemlock spruce, thyme, turmeric, turpentine, vetiver, violet, yarrow.

Sprains & strains (C):

West Indian bay, borneol, camphor (white), chamomile (German & Roman), clove bud, eucalyptus (blue gum & peppermint), ginger, immortelle, jasmine, lavandin, lavender (spike & true), sweet marjoram, black pepper, pine (longleaf & Scotch), rosemary, thyme, turmeric, vetiver.... circulation, muscles and joints:


Health encyclopedia icon Health Encyclopedia

Recent Searches