Final answer:
The pterygomandibular raphe is formed by the medial pterygoid muscle and the lateral pterygoid muscle. These muscles aid in moving the jaw from side to side and in chewing and moving food within the mouth.
Step-by-step explanation:
The pterygomandibular raphe is comprised of the medial pterygoid muscle and the lateral pterygoid muscle.
The medial pterygoid muscle helps to move the mandible from side to side, and the lateral pterygoid muscle assists in moving the mandible from side to side and in chewing and moving food within the mouth.
These two muscles work together to provide support and movement for the jaw during chewing and speaking.