From the case:
Temporomandibular joint (annotated MRI)
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MRI Sagittal T1 with a closed mouth
1: temporal lobe of brain
2: temporalis muscle
3: mastoid process of temporal bone
4: articular eminence
Orange: mandibular fossa of temporal bone
Blue: anterior band of disc
Yellow: posterior band of disc
Red: condylar head of mandible
Green: condylar neck of mandible
Purple: external auditory canal