Zygomaticus major :-
Muscle details :-
Zygomaticus major shown in red. It is a muscle of facial expression which draws the angle of the mouth superiorly and posteriorly to allow one to smile.
Anterior surface of zygomatic bone.
Modiolus at angle of mouth.
Nerve supply :-
Buccal branch of facial nerve (VII).
Elevates and draws angle of mouth laterally.
Related pathology :-
In Bell’s palsy zygomaticus major muscle commonly paralysis .