Questions and Answers
What is the primary sensory nerve responsible for the innervation of the temporomandibular joint?
Which blood vessel primarily supplies the temporomandibular joint?
What is defined as the maximum intercuspation of the teeth?
In which position are the condyles at their uppermost position in the mandibular fossa without translation?
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What is the interocclusal space in the rest position of the mandible when the head is upright?
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Study Notes
Innervation and Vascularization
- Sensory innervation to the temporomandibular joint stems from the auriculotemporal and masseteric branches of the mandibular division of the trigeminal nerve.
- Arterial blood supply for the temporomandibular joint is primarily provided by branches of the external carotid artery, mainly the superficial temporal branch.
Mandibular Position
- Centric Occlusion (CO) or Intercuspal Position (ICP): Refers to the maximum intercuspation of the teeth, where the upper and lower teeth are in full contact.
- Centric Relation (CR): The jaw’s rest position where the condyles are at their highest point in the mandibular fossa, allowing movement without condylar translation.
- The interocclusal space at the rest position of the mandible, with the head upright, measures approximately 1-3 mm at the incisors.
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Description
Test your knowledge on the innervation and vascularization of the temporomandibular joint (TMJ). This quiz covers key concepts such as sensory innervation, blood supply, and basic jaw positions. Enhance your understanding of TMJ anatomy and its functional implications.
