<unk> s are the veins not in the chest or abdomen (i.e. in the arms, hands, legs and feet). These veins lead deoxygenated blood from the capillaries in the extremities back to the heart.
These veins are the most common intravenous access method in both hospitals and paramedic services for a<unk>  intravenous (IV) line for intravenous therapy.
Peripheral vein
Deep vein
Artery
Lymph vessel
Bleb 
Cardiac veins
Blood
Arterial tree