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Syllabus of FCPS Part 1
Uncategorized
USMLE
Best imaging for Bony Structures of TMJ?
CT Scan
Which Muscles are involved in Excursion of Mandible?
Ipsilateral masseter, temporalis; contralateral pterygoids (medial and lateral)
Which structure Divides disc space into superior and inferior compartments?
Articular Disc (Meniscus)
TMJ receives only __________ innervation?
Sensory
Which Muscles are involved in Protrusion of Mandible?
Pterygoids (Medial and Lateral)
Which Muscles are involved in Opening of Mandible?
Lateral pterygoids, suprahyoids and infrahyoids
What is the Action of Lateral pterygoid Muscle?
Protrusion, Depression and Contralateral excursion of Mandible
Upper compartment of TMJ is involved in which kind of Motion?
Translation
Nerve innervation of TMJ?
Auriculotemporal nerve, Nerve to masseter and Posterior deep temporal nerve.
What is the Insertion of Lateral pterygoid Muscle?
Superior: Articular capsule and disc. Inferior: Anterior condylar neck.
Lower compartment of TMJ is involved in which kind of Motion?
Rotation
Name Accessory ligaments of TMJ?
Sphenomandibular ligament and Stylomandibular ligament
Best imaging for Soft Tissue Structures of TMJ?
MRI
What is the Action of Medial pterygoid Muscle?
Elevation, Protrusion and Contralateral excursion of mandible
What is the Insertion of Medial pterygoid Muscle?
Medial side of mandibular angle
What is the Origin of Lateral pterygoid Muscle?
Superior: Greater wing of the sphenoid. Inferior: Lateral side of lateral pterygoid plate.
Which Muscles are involved in Closing of Mandible?
Temporalis, masseter and medial pterygoids
Which Muscles are involved in Retrusion of Mandible?
Temporalis and masseters (deep)
At the angle of mandible a Sling is formed by which two Muscles?
The Masseter and Medial pterygoid muscles
Most common Direction of TMJ Disc Displacement?
Anteromedially
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