Martial Arts Instructor (MAI) Course Test 1 Practice

What attaches the mandible to the skull?

Temporomandibular joint (TMJ) attaches to the skull by a hinged joint Ball-and-socket joint Atlanto-Occipital joint Glenoid fossa

Correct Answer:

Temporomandibular joint (TMJ) attaches to the skull by a hinged joint

Explanation:

The mandible is attached to the skull by the temporomandibular joint, a specialized hinge joint where the condyle of the mandible fits into the mandibular fossa of the temporal bone, with an articular disc between. This setup allows the jaw to hinge open and closed and also glide a bit for chewing and speaking. The other options describe joints or sockets that don’t connect the jaw to the skull: a ball-and-socket joint is what you find in the shoulder or hip; the Atlanto-Occipital joint links the skull to the first cervical vertebra, not the jaw; and the glenoid fossa refers to the shoulder socket, not the jaw (the jaw’s relevant fossa is the mandibular fossa).

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