The expression is a trinomial, like the expressions which we've been factoring in this lesson. There is a small variation in this problem however -- the first term has a coefficient that is not 1.
Ventricular Phonation (Plica Ventricularis). This occurs when a great amount of muscle tension above the vocal folds is created in the laryngeal area causing an approximation of the false vocal folds.entricular Phonation (Plica Ventricularis). This occurs when a great amount of muscle tension above the vocal folds is created in the laryngeal area causing an approximation of the false vocal folds.
The most common type of ventricular ectopic beat is premature, causing ventricular contraction before the underlying rhythm would normally depolarise the ventricles. The resultant heartbeat morphology on the ECG often appears wider and taller than that seen with the underlying rhythm.