#epigastric_vein  veins serving the anterior walls of the abdomen
  supertype:  #vein__vena  a blood vessel that carries blood from the capillaries toward the heart; all veins except the pulmonary carry unaerated blood
  subtype:  #inferior_epigastric_vein__vena_epigastrica_inferior  empties into the external iliac vein
  subtype:  #superficial_epigastric_vein__vena_epigastrica_superficialis  empties into the great saphenous vein
  subtype:  #superior_epigastric_veins__venae_epigastricae_superiores  veins that accompany the superior epigastric artery

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