The dorsal venous arch of the foot is a superficial vein that connects the small saphenous vein

Small saphenous vein

The small saphenous vein , is a relatively large vein of the superficial posterior leg.-Path:Its origin is where the dorsal vein from the fifth digit merges with the dorsal venous arch of the foot, which attaches to the great saphenous vein...

 and the great saphenous vein

Great saphenous vein

The great saphenous vein , also long saphenous vein, is the large superficial vein of the leg and thigh.The terms "safaina" and "el safin" have both been claimed as the origin for the word "saphenous."-Path:The GSV originates from where the dorsal vein of the first digit...

. Anatomically, it is defined by where the dorsal vein

Vein

In the circulatory system, veins are blood vessels that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart...

s of the first and fifth digit

Toe

Toes are the digits of the foot of a tetrapod. Animal species such as cats that walk on their toes are described as being digitigrade. Humans, and other animals that walk on the soles of their feet, are described as being plantigrade; unguligrade animals are those that walk on hooves at the tips of...

, respectively, meet the great saphenous vein and small saphenous vein.

It is usually fairly easy to palpate

Palpation

Palpation is used as part of a physical examination in which an object is felt to determine its size, shape, firmness, or location...

 and visualize (if the patient is barefoot). It lies superior to the metatarsals bone

Bone

Bones are rigid organs that constitute part of the endoskeleton of vertebrates. They support, and protect the various organs of the body, produce red and white blood cells and store minerals. Bone tissue is a type of dense connective tissue...

s approximately midway between the ankle joint and metatarsal phalangeal joints.