Important fact regarding TMJ Anatomy: Disc = fibrocartilage (avascular, aneural in center). Upper joint space = translation. Lower = rotation. Lateral pterygoid = opens mouth + protrudes. Only muscle that opens = lateral pterygoid (inferior head) + digastric.

This fact is from TMJ Anatomy in Oral Anatomy, Histology & Embryology. It is a commonly tested concept in NEET MDS examinations. Understanding this fact is crucial for answering MCQs correctly.

🎓 Learn with AI 📝 Practice MCQs

More Facts from TMJ Anatomy

Disc = fibrocartilage avascular aneural in center

Upper joint space = translation gliding movement

Lower joint space = rotation hinge movement

Lateral pterygoid = opens mouth protrusion depression

Inferior head lateral pterygoid = active in opening

Superior head = active in closing

Articular eminence = slope guides condylar movement.