1. Boundaries
1.1. Lateral
1.1.1. Ramus of mandible
1.2. medial
1.2.1. lateral pterygoid plate
1.2.2. Pharynx
1.3. Anterior
1.3.1. posterior aspect of the maxilla
1.4. Posterior
1.4.1. mastoid & styloid processes
1.5. Superior
1.5.1. inferior surface of the greater wing of the sphenoid.
1.6. Inferior
1.6.1. where the medial pterygoid muscle attaches to the mandible near its angle
2. Content
2.1. Deep muscles of mastication
2.1.1. Medial pterygoidl m.
2.1.1.1. supply - main trunk of mandibular n.
2.1.1.2. action - elevate &
2.1.2. Lateral pterygoid m.
2.1.2.1. supply - anterior division of mandibular n.
2.1.2.2. action - protrude & depress mandible , side to side movement , chewing
2.2. Nerves
2.2.1. mandibular branch of trigemina
2.2.1.1. relations
2.2.1.1.1. medial - otic ganglia
2.2.1.1.2. lateral - lateral pterygoid
2.2.1.1.3. posterior - midle meningeal a.
2.2.1.2. anterior division
2.2.1.2.1. deep temporal n,
2.2.1.2.2. masseteric n,
2.2.1.2.3. buccal n.
2.2.1.3. posterior division
2.2.1.3.1. auriculotemporal n.
2.2.1.3.2. lingual n.
2.2.1.3.3. inferior alviolar n.
2.2.1.3.4. mylohyoid n.
2.2.2. Otic ganglion
2.2.2.1. its medial to the mandibular nerve just bellow the foramen ovale
2.2.2.2. parasympathetic ganglion
2.2.2.3. preganglionic fibers from glossopharyngeal n.
2.2.2.4. postganglionic fibers through the auriculotemporal n. to supply parotid gland
2.3. Vessels
2.3.1. Maxillary a.
2.3.1.1. middle meningial a.
2.3.1.2. inferior alviolar a.
2.3.1.3. masseteric a.
2.3.1.4. deep temporal a.
2.3.1.5. buccal a.
2.3.1.6. posterior superior alviolar a.
2.3.2. Pterygoid venous plexus
2.3.2.1. comunicatees with the facial vein through deep facial vein