Veins

The four pulmonary veins bring blood that has been oxygenated in the lungs back to the heart. They empty directly into the left atrium. Its is important to note that while most veins carry deoxygenated blood, the blood in these vessels are oxygen rich.

Becouse right hand is required for further work for the righty person.

because of a vericose vein it caused it to burst open

The pulmonary veins are the only veins in the body that carry oxygenated blood.

Like all veins the blood in the pulmonary veins travel toward the heart.

That means that the needle they were using to draw your blood when through the vein instead of stopping while in the vein( needed to collect the blood) and fluid leaked out around the vein. It will stop its own leak and will eventually heal itself. Ice will help the swelling for a short period.

The blood in veins is at a lower pressure than it is in the arteries. The lower pressure makes for challenges getting that blood back to the heart. As there is less force (pressure) in the veins, blood would pool in the lower parts of the body if there were not mechanisms to prevent that. There are three different things that help blood get back to the heart.

The three mechanisms are: venous valves, muscular pumps, and the respiratory pump.

Look up collateral circulation. The saphenous vein is a superficial vein, so it primarily works to cool/warm the body. It is fed by veins that are deeper in your leg, so when you remove the saphenous vein the other veins find a different path to go around (collateral circulation). Once this vein is removed (typically for Bypass surgery, but potentially for varicose vein treatment) the person's leg tends to be "fatter" or "swollen". Ironically, some medical sources indicate that the swelling subsides, but in practice I can tell you that is seldom the case. None the less, a fatter left, or right leg is better than a still heart.

The left atrium receives the blood carried from the pulmonary veins.

Because the skin thins to paper thin on the outer body as well as tissues in the inner body, not to mention muscle loss. The heart has to pump harder as we get older, thus we really see the veins stick out. Think of a body builder ... look at those veins! They have always been there, but when younger we don't notice them as much. As we age, the tissue in out body loses its elasticity. Veins and arteries start to stretch, and have a larger cross section. The skin also loses elasticity and becomes 'floppy', allowing the veins to show through more readily.

Yes

Great Saphenous vein is "borrowed" for cardiac bypass surgery

no, you just have a pale complexion complimented by general translucence of the epidermis.

The blood going out from the arteries is full of oxygen. It delivers that oxygen to the organs, therefore when it returns in the veins, it contains carbon dioxide

No

It does not mean anything. You will find all kinds of different shapes and configurations if you look closely enough.

Though many people will read all kinds of nonsense into such things.

Renal vein thrombosis occurs in both infants and adults. Onset of the disorder can be rapid (acute) or gradual.

There are a number of treatments for varicose veins, ranging from laser surgery to just wearing pressure stockings. The arthritis is a separate issue. Treatments range from drugs to surgical knee replacement.

No, it will just bleed. Veins do not go away like that. If that were the case, every time you had blood drawn, you would be losing veins.

The veins in your head dont need valves. Valves prevent backflow in the lower extremities because your bloodflow is going against gravity and your body is using muscular pumps to get the bloodflow back up to the heart. The blood flow in your upper extremities use gravity to get back to the heart via the superior vena cava.

The saphenous is not necessary in the sense that an individual will live without it. It may be harvested to use as material for coronary bypass grafts (heart surgery). Years ago, it was a commonly excised (surgically removed) vein in varicose vein surgery. After two weeks in bed, the patients body had developed the ability for the blood to find it's way back to the heart through smaller veins. There are much improved techniques today, but it defines the fact that the vein is not absolutely necessary, it can be "worked around".

if a pancreatic tumour is attached to this vein, will this problem stop a whipple op from being performed

What does bruising on your legs mean

The heart.

Bao

Deep vein thrombosis is a common but difficult to detect illness that can be fatal if not treated effectively.