Kalmar "ƙananan huhu na huhu" tana nufin ɗaya daga cikin jijiyoyin huhu guda huɗu waɗanda ke jigilar jinin oxygen daga huhu zuwa hagu na hagu na zuciya. Ƙarƙashin jijiyar huhu musamman tana nufin jijiyar da ke zubar da ƙananan lobe na huhu na hagu. "Ƙasa" a cikin wannan mahallin yana nufin "ƙananan," kamar yadda wannan jijiya tana cikin ƙananan ɓangaren huhu.
