Medically reviewed by Jeffrey S. Lander, MD Key Takeaways The inferior vena cava is a large vein that carries blood from the ...

The deep dorsal vein of the penis drains oxygen-depleted blood away from the glans, which is the external head of the sexual organ. This vein runs the length of the shaft and it eventually flows into ...

The retromandibular vein is a branch of the jugular veins. The jugular veins go up the neck and join with the facial vein, which drain blood from the face and return it to the heart for oxygenation.

Nurse wiping an older male patient's arm with a cotton swab as she preps for a blood draw. Most people will take a blood test at some point in their life, and commonly, this requires blood to be drawn ...

Recent years have seen an enormous amount of experimental and clinical research into role of the pulmonary veins (PVs) in atrial fibrillation (AF). Advanced imaging techniques have confirmed the ...

Those bright blue lines on your hands might just be cosmetic, but they could also signal a serious vascular issue. Here is how to tell the difference between normal anatomy and a medical emergency.

In patients with paroxysmal AF originating from the PVs, extensive monitoring will frequently document coexisting paroxysms of both AT and AF. Similarly at electrophysiological evaluation, many ...