A narrow categorised _'s general knowledge of lung artery

A narrow categorised _'s general knowledge of lung artery
( 1) The valve type lung artery one is narrow: See at most, namely three lung artery ones are increased thick, the intersection is while merging the heart to shrink, because the valve can not be opened, and present the garden and carry evidence, the centre leaves aperture of 2- 4mm diameter, some cases are only two leaves, expand after the pulmonary trunk is narrow.
( 2) Funnel one of right ventricle is narrow: The whole funnel department muscle is increased thick, form the long and narrow passway, it can also be the muscle diaphragm type, take the form of ring-type to be narrow, cause third ventricle, have valve type to be narrow to claim phenotype to be narrow at the same time.
( 3) The lung artery is narrow: A part that can involve the total artery of lung and do or all, can also spread to the left, right branch, expand before and after often having narrow section.
In addition, it can be divided for being light according to the pressure difference between right room and lung artery that the lung artery one is narrow, China is heavy. It is lack of 0 to press. 75 kPas (exceed 10 millimetres of mercury columns) Can diagnose as the lung artery one is narrow, it is narrow to press and is lack of 10-50 millimetres of mercury columns slightly; The left room systolic pressure level 50 is intermediate; It is severe to be greater than the left room systolic pressure level.

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