Hyparterial bronchus

A hyparterial bronchus is any bronchus originating inferior to the level of the pulmonary artery. Conversely, the right superior lobar bronchus can be referred to by its anatomical relationship to the pulmonary arteries as being eparterial.

The term may be encountered in the classification of heterotaxy syndromes, and may be used to differentiate polysplenia and asplenia syndrome.