porta

[L., a gate. See Port a hole.]
(Anat.) (a) The part of the liver or other organ where its vessels and nerves enter; the hilus. (b) The foramen of Monro. B. G. Wilder.

The gate of an ancient Roman city.

Pl. portae [L.] an entrance or gateway, especially the site where blood vessels and other supplying or draining structures enter an organ.

• p. hepatis — the fissure on the visceral surface of the liver, where the portal vein and hepatic artery enter and the bile duct leaves. Called also portal fissure and transverse fissure.