anterior basal branch of (1) basal parts of the inferior lobar branches of the right and left pulmonary arteries, and (2) superior basal branches of the right and left inferior pulmonary veins. Syn: ramus basalis anterior [NA].
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anterior basal branch of (1) basal parts of the inferior lobar branches of the right and left pulmonary arteries, and (2) superior basal branches of the right and left inferior pulmonary veins. Syn: ramus basalis anterior [NA].