Temporomandibular Joint Ch 5 Quiz

What is another term used for articulate fossa of the temporomandibular joint?

Glenoid

What type of temporomandibular joint (TMJ) movement(s) occur during lateral deviation of the mandible or shifting of the lower jaw to one side?

Gliding movement on one side and rotational movement on the other side

What movement of the temporomandibular joint (TMJ) occurs MAINLY between the disc and the condyle of the mandible in the lower synovial cavity?

Rotation

From the following list of actions involving the temporomandibular joint, select those that are DIRECTLY associated with lateral deviation of the joint. -Both lateral pterygoid muscle contractions -single lateral pterygoid muscle contraction -rotational movement -gliding movement

Single lateral pterygoid muscle contractions Rotational movement -gliding movement

Whichligament associated with he temporomandibular joint is a landmark for the administration of inferior alveolar local anesthetic nerve block? -Temporomandibular joint ligament -sphenomandibular ligament -stylomandibular ligament -stylohyoid ligament

Sphenomandibular ligament

Which of the following ligaments is NOT associated with the temporomandibular joint? -stylomandibular ligament -temporomandibular joint ligament -stylohyoid ligament -sphenomandibular ligament

Stylohyoid ligament

The pterygomandibular raphe is the junction between the buccinator and ________________.

Superior pharyngeal constrictor

Which ligament associated with the temporomandibular joint (TMJ) prevents excessive retraction or moving backward of the mandible? -stylomandibular ligament -sphenomandibular ligament -stylohyoid ligament -Temporomandibular ligament

Temporomandibular ligament

As a person ages or undergoes trauma to the area, the disc of the temporomandibular joint can become thicker or even perforated. Perforation can lead to clinical problems.

The first statement is false, the second is true

The disc of the temporomandibular joint (TMJ) is a fibrous disc located between the temporal bone and the coronoid process of the mandible on each side. This disc conforms to the shape of the bones and is related to normal joint movement.

The first statement is false, the second is true

The temporomandibular joint (TMJ) is innervated by the maxillary nerve (division) of the fifth cranial or trigeminal nerve. The blood supply to the joint is from branches of the external carotid artery.

The first statement is false; the second is true

When examining the joint, joint sounds may be heard because of disc derangement. Joint sounds are a reliable indicator of temporomandibular disorder (TMD).

The first statement is true, the second is false

The disc of the temporomandibular joint (TMJ) is attached to the lateral and medial poles of the mandibular condyle. The disc is fully attached to the temporal bone to all sides of the bone.

The first statement is true, the second is flase

The sphenomandibular ligament is a landmark for the administration of (long) buccal nerve block and is also involved in troubleshooting the injection due to its location.

The fist statement is false, the second is true

Including examination of the temporomandibular joint (TMJ) during the extraoral examination is important to detect changes such as disc perforation BECAUSE disc perforation is commonly found in females and males during puberty.

The statement is correct but the reason is NOT

The base of this triangular ligament is attached to the zygomatic process of the temporal bone and the articular tubercle; its apex is fixed to the lateral side of the neck of the mandible. This ligament prevents the excessive protrusion or moving forward for the mandible, a situation that might lead to problems with the temporomandibular joint (TMJ).

The statement is correct, but the reason is NOT

From the following list of descriptions, select those descriptions that can be applied to the stylomandibular ligaments of the temporomandibular joint. -Variable ligament anatomically -Become taut with mandibular protrusion -Consistent ligament anatomically -Formed from thickened area cervical fascia -Formed from sphenomandibular ligament extension

Variable ligament anatomically Become taut with mandibular protrusion Formed from thickened area cervical fascia

From the following list of descriptions, select those descriptions that can be applied to the joint capsule of the temporomandibular joint. Wraps around the condyle circumference Wraps around only the superior part Wraps around the coronoid process circumference Wraps around articulate eminence and fossa Wraps around only the inferior part

Wraps around the condyle circumference Wraps around the articulate eminence and fossa

What is the fossa located on the temporal bone that articulates with the mandible?

glenoid fossa

What is the depression located between the condyle and the coronoid process of the temporomandibular joint?

mandibular notch

The gliding movement of the temporomandibular joint allows the lower jaw to move forward or backward. What movement of the mandible is involved when the lower jaw moves forward?

protrusion

What occurs with the dislocation of BOTH the temporomandibular joints on a patient? -Subluxation -cellulitis -paresthesia -thrombus

subluxation

The rest position of the temporomandibular joint (TMJ) is NOT with the teeth biting together BECAUSE as we observe during mastication of food, the mandible returns to the center.

Both the statement and the reason are correct but NOT related

If you contract only the RIGHT lateral pterygoid muscle, which way will your jaw move?

Deviate to the left

From which of the following situation, select those situation that can occur with the aging of the disc of the temporomandibular joint. -Dislocated -hyper mobile -thinner -perforated -thicker

Dislocated Thinner Perforated

From the following list of action, select the usual procedures in the examination of the temporomandibular joint -Extraoral radiography of the joint region -Patient biting on wax impression -Digital palpation of external acoustic meatus -Bilateral palpation of all joint movements -Ausculation of the joint

Extraoral radiography of the joint region Digital palpating of external acoustic meatus Bilateral palpation of all joint movements Auscultation of the joint

Opening the jaws during speech and mastication involves BOTH elevation and retraction of the mandible. When the jaws close, this involves BOTH depression and protrusion of the mandible.

Both statements are false

When considering temporomandibular disorders (TMD), MOST symptoms seem to originate from the nerve surrounding the joint. In addition, MOST recent studies support the role of TMD in directly causing headaches, neck or back pain, or instability.

Both statements are false

The dental professional plays an important role in the recognition, treatment, and maintenance of patients with temporomandibular disorder (TMD). All signs and symptoms related to TMD need to be recorded by the dental professional, as well as any parafunctional habits and related systematic diseases.

Both statements are true

The temporomandibular joint (TMJ) allows for movement of the mandible during speech and mastication. Two basic types of movement are performed by the joint and its associated muscles: a gliding movement and a rotational movement.

Both statements are true

The temporal bone and mandible come together to form the temporomandibular joint BECAUSE a joint is defined as a junction or union between two or more bones.

Both the statement and the reason are correct and related

The resting position of the temporomandibular joint (TMJ) can be noted with the teeth _____ to allow a physiologic rest for the mandible. -apart 6 to 10 mm -apart at 2 to 4 mm -biting together -resting together

Apart at 2 to 4 mm