what is the fifth muscle of mastication?

Question

The known four primary muscles of mastication are masseter, temporalis, pterygoid externi and interni. someone know the fifth one?

Answer 1

I found the following list.

Masseter
Temporalis
Lateral pterygoid
Medial pterygoid

If you look in the link in my source list you will find further information and additional muscles listed, but the above four are the main chewing muscles.

Take care,
Troy