From: Neuroplasticity induced by general anaesthesia: study protocol for a randomised cross-over clinical trial exploring the effects of sevoflurane and propofol on the brain – A 3-T magnetic resonance imaging study of healthy volunteers
Class
Visible parts by inspection of open mouth
I
Soft palate, fauces, tonsillar pillars and uvula
II
Soft palate, fauces and uvula
III
Soft palate and base of uvula
IV
Soft palate invisible