Superior head of lateral pterygoid muscle
Caput superius musculi pterygoidei lateralis
- Synonym: Upper head of lateral pterygoid muscle; Sphenomeniscus muscle
- Related terms: Upper head; Superior head; Lateral pterygoid (Upper head; Superior head); Lateral pterygoid: Upper head; Superior head
Definition
The superior head (superior belly) of the lateral pterygoid muscle arises from the lower part of the lateral surface of the great wing of the sphenoid and from the infratemporal crest. It inserts on the on the anterior disk of the temporomandibular joint (TMJ).
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