Vein (anatomy)
A vein was a type of blood vessel that carried blood to the heart.

Upon Captain  returning from an unsuccessful away mission to the planet Teenax in 2263 of the alternate reality, Doctor  told Kirk he had a "little vein popping out of [his]  again." ()

Types of veins
 External jugular
 Internal maxillary
 Posterior auricular
 Superior vena cava
 Temporal vein

See also
 Vascular adhesive
 Vascular congestion
 Vascular disorder
 Vascular fluid pumps
 Vascular pad
 Vascular regeneration therapy
 Vascular regenerator

External link 

Anatomy