Answer:
The upper/superior head of the lateral pterygoid muscle inserts into the anterior side of the mandibular condyle and originates from the sphenoid bone.
Step-by-step explanation:
The muscle lateral pterygoid, also called the external pterygoid, has two heads and is a muscle of mastication. The two heads are the upper/superior head and lower/inferior head.
The upper/superior head of the lateral pterygoid muscle originates from the sphenoid bone and inserts into the anterior side of the mandibular condyle.