All except one is true regarding attachment of mandible
1 - Temporalis
2 - Masseter.
3 - Lateral pterygoid.
4 - Medial pterygoid.
5 - Mylohyoid.
Lateral pterygoid is the depressor of mandible.
Muscle 1 is retractor of mandible
Muscles 2 and 3 elevate the mandible
Lingual nerve runs deep to muscle 5
Muscle 3 and 4 help in sideways chewing movements