The lateral pterygoid muscle (or external pterygoid muscle) is a muscle of mastication. It has two heads. It lies superior to the medial pterygoid muscle. It is supplied by pterygoid branches of the maxillary artery, and the lateral pterygoid nerve (from the mandibular nerve, CN V 3). It depresses and protrudes the mandible. When each muscle ...

2023年11月3日 · Lateral pterygoid is located deep to the temporalis and masseter muscles, spanning between the sphenoid bone and temporomandibular joint. Its muscle belly is separated by a small horizontal fissure into two heads; superior (upper) and inferior (lower).

The lateral pterygoid muscle is a craniomandibular muscle that helps control movement of the temporomandibular joint (TMJ). It has two heads, superior and inferior, and the inferior is three times larger than the superior.

2023年11月2日 · The lateral pterygoid is a short, two-headed muscle, located in the infratemporal fossa of the skull. The smaller superior head arises from the infratemporal crest of the greater wing of sphenoid bone , while the larger inferior head arises from …

2024年9月10日 · The lateral pterygoid muscle is a craniomandibular muscle that plays a crucial role in the inferior temporal region (see Image. Lateral Pterygoid Muscle). This is active during mastication and mandibular movements - including protrusion (forward movement of the mandible), abduction (depression of the mandible), and mediotrusion (mandibular ...

2024年9月15日 · The lateral pterygoid is a short and thick muscle with a somewhat conical form. It extends almost horizontally, posteriorly, and laterally between the infratemporal fossa and the condyle of the mandible .

2023年1月16日 · The lateral pterygoid is a muscle of mastication (chewing). It is triangular shaped muscle with superior and inferior heads. Attachments: The superior head originates from the greater wing of the sphenoid. The inferior head originates from the lateral pterygoid plate of …

The lateral pterygoid is a short, thick muscle, somewhat conical in form, which extends almost horizontally between the infratemporal fossa and the condyle of the mandible. It arises by two heads; an upper from the lower part of the lateral surface of the great wing of the sphenoid and from the infratemporal crest; a lower from the lateral ...

2023年2月10日 · The primary role of the lateral pterygoid muscle is to pull the head of the condyle out of the mandibular fossa along the articular prominence to protrude the mandible. Concerted action of the lateral pterygoid muscles helps in lowering the mandible and opening the jaw.

The lateral pterygoid muscle, as you are aware, is comprised of two distinct muscle bodies, the superior division (smaller) arising from the infratemporal surface and crest of the greater wing of the sphenoid bone and the inferior division (larger) …