porta
門
por·ta /ˈpɔrtə/ 名詞
門
Por·ta n.; pl. Portæ Anat. (a) The part of the liver or other organ where its vessels and nerves enter; the hilus. (b) The foramen of Monro.
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porta
n : an aperture or hole opening into a bodily cavity; "the
orifice into the aorta from the lower left chamber of the
heart" [syn: orifice, opening]