9.8 Continued

Question 1

Temporomandibular joint (TMJ)

Answer 1

Combined hinge and plane joint.

Only freely moveable joint between skull bones (except for ossicles).

Question 2

Articular disc

Answer 2

Fibrocartilage that separates the synovial cavity into superior and inferior compartments, each with a synovial membrane

Question 3

Articular capsule

Answer 3

Thin fairly loose envelope around the circumference of the joint

Question 4

Lateral ligament

Answer 4

Two short bands on the lateral surface of the Articular capsule.

In between the mandible, zygomatic, and temporal bone

Question 5

Sphenomandibular ligament

Answer 5

Thin band that extends inferiorly and anteriorly from the spine of the sphenoid bone to the mandible.

Question 6

Stylomandibular ligament

Answer 6

Thickened band of deep cervical fascia that extends from the styloid of temporal bone to ramus of mandible.

Separates parotid gland from submandibular gland and limits movement of mandible at TMJ.