Modiolus at the cortex of mouth is formed by all except?: (A) Triangularis, (B) Buccinator, (C) Orbicularis oris, (D) Alaque Nasi
Answer is D. Modiolus is a chiasma of facial muscles held together by fibrous tissue located superolateral to each angle of mouth.
It is formed by 8 muscles,

Orbicularis oris
Buccinator
Levator anguli oris
Depressor anguli oris
Levator labii superioris
Zygomaticus major
Risorius
Platysma