Exam 7: Muscles of Mastication and the Temporomandibular Joint

The ____________________ divides the TMJ into upper and lower joint cavities.

What two accessory muscles of mastication compose the floor of the mouth?

The insertion of the temporails muscle is the

Each of the following muscles are innervated by the mandibular division of the trigeminal nerve except the

When the mouth is normally closed, the condylar head of the mandible lies in the ____________________ of the temporal bone.

Which of the following ligaments limits posterior displacement of the TMJ?

The ____________________ ligament limits both lateral and posterior displacement of the mandible.

Which of the following nerves provides sensory innervation to the temporomandibular joint?

Closing of the mouth is accomplished by which of the following muscles? (Select all that apply.)

The ____________________ ligament supports the capsule of the TMJ.

The medial pterygoid muscle inserts on the

The neurovascular bundle that supplies the TMJ can be found in the ____________________, located behind the articular disc.

What is the common attachment of the anterior and posterior bellies of the digastric muscle?

Match the muscle with its correct origin. -Zygomatic arch

Which of the following muscles is not considered a primary muscle of mastication?

Match the muscle with its correct origin. -Maxillary tuberosity

Which of the following structures attach to the articular disc of the TMJ?

What is the innervation of all primary muscles of mastication?

Contraction of which of the following muscles allows retrusion of the mandible? (Select all that apply.)

Why is the buccinator, a muscle of facial expression, also considered an accessory muscle of mastication?