Spider veins, also known as telangiectasias or thread veins, resemble spider webs or tree branches. They occur when damage to blood vessels close to the skin's surface causes them to widen.

removing all but the most essential elements but still clearly conveying a tree. It jibed with his own work explaining mathematically how treelike structures in human biology such as veins and ...

Varicose veins are a common vascular condition that can cause discomfort, swelling, and aesthetic concerns. While visible ...

“Gray Tree” uses only curved lines of various thickness ... the body exerts much tighter control over diameter than length. So while veins and arteries might take circuitous routes to ...