Medial Pterygoid

Question 1

Origin

Answer 1

Medial surface of the lateral pterygoid plate of the pterygoid process of the sphenoid bone

Question 2

Insertion

Answer 2

Internal surface of the angle and inferior border of the ramus of the mandible

Question 3

Function

Answer 3

• Contralateral deviation of the mandible at TMJ
• Elevation of the mandible at the TMJ
• Protraction of the mandible at the TMJ

Question 4

Nerve

Answer 4

Mandibualr branch of the trigeminal nerve (cranial nerve 5)