Veins

The purpose of portal vein bypass surgery is to lower portal hypertension.internal bleeding caused by portal hypertension occurs in about 40% of patients with cirrhosis.Portal vein bypass.is performed on these surviving patients to control bleeding.

Veins are blue because the blood is poor in oxygen, arteries are red because the blood is rich in oxygen.

Dear Reader; There are so many possibilities that I could miss it altogether or say something that would cause you undo concern. This is a matter that you may take up with your health care provider. Your concern could be answered in a phone conversation if it lies within a small group of possibilities. Dwight

Well, pulmonary means lung so consider it the lung circuit so it's mostly to the heart and then to the lung and repeat. Arteries in the pulmonary circuit will carry non oxygenated blood to the lungs and it will go to several stages before the remaining blood goes into the veins which will seperate into smaller vessels which will always connect back to the heart where it enters the atrium so the remaining blood goes again through many stages then repeats.

The two major veins which drain the leg are 1) the femoral vein, and 2) the saphenous vein.

The pulmonary artery carries deoxygenated blood from the heart to the lungs.

Right and left brachiocephalic veins

Venous insufficiency is a condition in which blood pools in the vein because the valves have become incompetent.

well.....you would bleed. depending on the severity of the cut and the size of the vein, you could die without medical attention. Do not, under any circumstances, purposefully cut your hand. You do not know what is in there. If you want to cut your hand, seek medical attention before you do so. They will get you the help you need.

The superficial veins of the upper extremities are best for cannulation.

Veins carry deoxygenated blood to the heart. To do this they have multiple structural features.

The first feature is the wide lumen. This is because it takes blood back to the heart so a high pressure is not required. It also allows ease of flow.

The second feature is the endothelium that surround the lumen. The endothelium is known as a lining and is a single layer of cells. This reduces friction of the flowing blood.

The third feature of the vein is that it has valves. Valves are very useful as it keeps blood flowing towards the heart and prevents backflow.

The forth feature of the vein is that it has smooth muscle.Smooth muscle can constrict to improve exchange of gas at the alveoli.

The fifth feature of the vein is that it has elastic tissuewhich works as the smooth muscles relaxes to return the vessel to it's orignal size and shape.

Lastly as the previous answer stated: the walls of the vein are thin as there is little muscle.

A woman's total blood volume increases during pregnancy, which increases the blood pressure in the venous system. In addition, the hormonal changes of pregnancy cause the walls and valves in the veins to soften.

VALVES

The main purpose of the vena cava is to carry deoxygenated blood from the lower part of the body to the heart. It carries this blood to the right atrium of the human heart.

The arteries are connected to the veins through capillaries. Blood leaves the heart through arteries, goes throughout the body, then by way of capillaries to the veins and returns to the heart.

arteries

It can, but not usually. Most of the time it just swells around the part of the vein and leaves a bruise, which is really the only part that should hurt.

Our Veins look blue as well because those veins contain carbonated blood ,the blood which is going back to liver for oxygenation or purification.

Due to access amount of carbon di oxide this blood looks like blue inside the veins.

All veins carry blood to the heart, and pulmonary veins are specifically veins that carry oxygenated blood (oxygenated in the lungs) from the lungs to the heart. In other words, the left pulmonary vein carries oxygenated blood from the left lung to the heart, and the right pulmonary vein carries oxygenated blood from the right lung to the heart.

Superheated water forces its way into rock faults. It contains many dissolved minerals which crystallise out when the water cools.

I BELIEVE THE CORRECT ANSWER IS THE PHRENIC .

Tubes used for blood bank (Pink and Lavender top) contain a chemical called EDTA that binds the calcium in blood, which is needed for blood to clot.

Red or Gold top tubes contain no chemicals to prevent the blood to clot, so the blood will clot with out being exposed to air.

Each specific department in the lab have different colored tubes with different chemical/no chemical in them depending on what test has been ordered.

The pressure your heart creates by pulsing, pumps blood through the veins

Four pulmonary veins, which are two from each lung, enter the left atrium of the heart. Oxygenated blood is contained in these veins that then drain into the left atrium.