It is often visible through the skin, and its location in the deltopectoral groove is fairly consistent, making this site a good candidate for cannulation. It is often referred to as the 'House-man's Friend' for this reason and is generally a good place for cannulaton when a large bore cannula needs to be sited.
Ordinarily the term cephalic refers to anatomy of the head. When Persian physician Ibn Sīnā's Canon was translated into medieval Latin, cephalic was mistakenly chosen to render the Arabic term al-kífal, meaning "outer".
Image:Gray417_color.PNG|Cross-section through the middle of the forearm.
Image:Gray573.png|The veins on the dorsum of the hand.
Image:Gray575.png|The deep veins of the upper extremity.