Table 1.

Measurements and corresponding definitions.

Variable	Definition
Velar insertion distance	Linear distance from the PG velar insertion on the left side to the velar insertion on the right side
Lingual insertion distance	Linear distance from the PG lingual insertion on the left side to the velar insertion on the right side
PG length	Linear distance from the point of velar insertion to the lingual insertion
PG width	Linear, side-to-side diameter of the muscle halfway between the velum and tongue
LVP (sagittal) angle	Interior angle created by the intersection of the oblique coronal plane of the LVP muscle and a guideline running along the anterior aspect of the third and fourth cervical vertebrae from the midsagittal view
PG angle	Interior angle created by the intersection of the oblique coronal plane of the PG muscle and a guideline running along the anterior aspect of the third and fourth cervical vertebrae from the midsagittal view
PG–LVP angle	Interior angle created by the intersection of the oblique coronal plane of the PG muscle and the oblique coronal plane of the LVP muscle from the midsagittal view

Note. PG = palatoglossus; LVP = levator veli palatini.