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Veins are a key player in the body: Here's why

Perhaps you haven't thought much about your veins. Or if you have, maybe you focused on varicose veins, those swollen, unsightly purplish vessels that may be visible just beneath the skin of the legs. Or perhaps you had a blood test and the person taking the blood had a hard time finding a "good vein." But these are just a small part of vein world. Veins make up a network of connecting tubes throughout the human body, ranging in size from 1 mm (about the size of a pencil point) to 2 cm (about the size of a quarter), that bring blood low in oxygen back to the lungs to reload with oxygen. Then four pulmonary veins carry oxygen-rich blood from the lungs to the heart. (Fun fact: some people have…

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Articles of Interest

A Robot May One Day Draw Your Blood

Scientists have developed a “venipuncture robot” that can automatically draw blood and perform lab tests, no humans needed.

Dolphins Have a Mysterious Network of Veins That Could Be Key to Preventing the Bends

It might be possible to make an external device that protects divers from the deadly condition.

Everything you wanted to know about vein problems (but were too busy pulling up your socks to ask)

About 20% of people develop visible varicose veins – while 84% of us get thread veins on our legs. What can you do to prevent them? And can they pose a serious health risk?

How Many Veins Are in Your Body? And How Long Are They Really?

How many veins are in your body? You probably don’t think about your veins all that often—until they start to cause discomfort or become more visible. But veins are an essential part of your circulatory system, and believe it or not, your body is packed with them. So just how many veins are in your body? And how long are they if you stretched them out?

How Veins Transport Blood

Veins can range in size from 1 millimeter to 1-1.5 centimeters in diameter. The smallest veins in the body are called venules. They receive blood from the arteries via the arterioles and capillaries. The venules branch into larger veins which eventually carry the blood to the largest veins in the body, the vena cava. Blood is then transported from the superior vena cava and inferior vena cava to the right atrium of the heart.

Information about Veins – Do You Know How Amazing They Are?

The average adult has roughly 2,000 gallons of blood circulating through his or her VEINS and other blood vessels in a single day, which is enough to fill five hot tubs

The Veins of the Body: Structure, Function, and Clinical Relevance

The venous system plays a critical role in maintaining circulation by transporting deoxygenated blood from tissues back to the heart and lungs for oxygenation. Veins are less muscular than arteries but are equipped with valves to facilitate blood flow against gravity, especially in the lower extremities. Understanding the anatomy and function of the veins is crucial in fields such as cardiology, vascular surgery, and internal medicine.

This underdiagnosed vein disorder affects 4 in 10 Americans

From tingly legs to bulging veins, these warning signs may point to chronic venous insufficiency—a widespread circulatory issue doctors say is on the rise.

Resources

12 Mind-Blowing Facts about Veins That You Need To Know

The great Saphenous vein is, not the superficial vein, but the body’s longest vein. It runs from the top of your foot to the upper thigh and groin. The vein is also a major cause of varicose veins, a condition of enlarged and dilated veins. If you have a heart condition and there are no available arterial grafts, your doctor can remove the great Saphenous and use it for autotransplantation in the coronary artery.

The Common Vein

The roots of The Common Vein lie not in technology or digital learning, but in a moment of personal struggle — a struggle familiar to every medical student and clinician: how to transform overwhelming information into meaningful understanding, and ultimately how to apply that knowledge with compassion in our work to help and to heal.

Physiopedia

Unlike the arteries, the venous pressure is low and their walls are thinner and are less elastic. This feature permits the veins to hold a very high percentage of the blood in circulation. The venous system can accommodate a large volume of blood at relatively low pressures, a feature termed high capacitance.