from The Century Dictionary.
- Lying below the artery, as a bronchial tube.
from the GNU version of the Collaborative International Dictionary of English.
- adjective (Anat.) Situated below an artery; applied esp. to the branches of the bronchi given off below the point where the pulmonary artery crosses the bronchus.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective anatomy Situated below an
artery; applied especially to the branches of the bronchigiven off below the point where the pulmonaryartery crosses the bronchus.
from Wiktionary, Creative Commons Attribution/Share-Alike License
The bronchus now passes below the artery, and is known as the hyparterial branch; it divides into two branches for the middle and lower lobes.
All the other divisions of the main stem come off below the pulmonary artery, and consequently are termed hyparterial bronchi.
The left bronchus passes below the level of the pulmonary artery before it divides, and hence all its branches are hyparterial; it may therefore be looked upon as equivalent to that portion of the right bronchus which lies on the distal side of its eparterial branch.
On the right side their position iseparterial bronchus, pulmonary artery, hyparterial bronchus, pulmonary veins, but on the left side their position ispulmonary artery, bronchus, pulmonary veins.