Question 1

Name the four types of nerve endings in the TMJ.

Accepted Answer

Pacinian nerve endings (pressure receptors),Ruffini nerve endings (temperature endings),Meissner nerve endings (touch receptors),free nerve endings (pain endings)

Question 2

The articular disk is thin but highly vascular.

Accepted Answer

A) True 
 B)False

Question 3

Identify the four muscles of mastication.

Accepted Answer

Medial pterygoid,lat...

Question 4

Which of the following is a function of the temporomandibular joint capsule?

Accepted Answer

A)   Provides joint lubrication
B)   Supports articulatory movements
C)   Encloses the lateral, medial, and posterior boundaries
D)   Keeps the disk immobile when the head of the condyle movesE) A) and B)
F) A) and C)

Question 5

Cartilage-bone remodeling is not possible.

Accepted Answer

A) True 
 B)False

Question 6

A mature mandibular condyle is which shape?

Accepted Answer

A)   Ovoid
B)   Circular
C)   Crescent
D)   TriangularE) None of the above
F) A) and D)

Question 7

The articular fossa undergoes which developmental change?

Accepted Answer

A)   Deepens and expands
B)   Becomes brittle and narrow
C)   Loses flexibility and perforates
D)   Becomes increasingly scalloped in shapeE) B) and D)
F) A) and B)

Question 8

The ___________ compartment of the temporomandibular cavity is bound superiorly by the articular fossa and inferiorly by the disk.

Accepted Answer

The answer of The ___________ compartment of the temporomandibular cavity...

Question 9

More blood vessels innervate the lateral and medial surfaces of the articular disk than the anterior and posterior areas.

Accepted Answer

A) True 
 B)False

Question 10

Every individual has eight muscles of mastication.

Accepted Answer

A) True 
 B)False

Question 11

The action of the lower half of the TMJ is a gliding motion.

Accepted Answer

A) True 
 B)False

Question 12

Which ligament attaches to the lateral part of the disk?

Accepted Answer

A)   Stylohyoid
B)   Stylomandibular
C)   Sphenomandibular
D)   TemporomandibularE) A) and B)
F) A) and C)

Question 13

The heads of mandibular condyles form secondary ossification centers.Secondary ossification centers produce epiphyseal lines (cartilage-bone junctions) .

Accepted Answer

A)   Both statements are true.
B)   Both statements are false.
C)   The first statement is true; the second is false.
D)   The first statement is false; the second is true.E) A) and B)
F) A) and C)

Question 14

Which of the following is a function of the lateral ligament of the temporomandibular joint?

Accepted Answer

A)   Operates in retraction of the disk
B)   Strengthens the capsule and allows freedom of condylar movement
C)   Provides strong insulation between the condylar heads and articular surfaces
D)   Supports the joint and limits excursions of the condyles to a normal rangeE) C) and D)
F) B) and C)

Question 15

The postnatal condylar head is a thick band of ___________.

Accepted Answer

The answer of The postnatal condylar head is a thick...

Question 16

Which of the following is not a function of the temporomandibular joint (TMJ) ?

Accepted Answer

A)   Speech
B)   Deglutition
C)   Respiration
D)   MasticationE) All of the above
F) B) and C) C

Question 17

The synovial membrane is associated with numerous capillaries and _________.

Accepted Answer

A)   fluids
B)   bones
C)   ligaments
D)   lymphaticsE) A) and C)
F) A) and B)

Question 18

At birth,condylar heads are round and covered with a thick layer of cartilage.

Accepted Answer

A) True 
 B)False

Question 19

The lateral pterygoid muscle does which of the following?

Accepted Answer

A)   Retracts the mandible
B)   Protracts and elevates the mandible
C)   Elevates the mandible and clenches the teeth
D)   Protrudes the mandible and pulls the articular disk forwardE) All of the above
F) C) and D)

Question 20

Articular remodeling is a response to _______________.

Accepted Answer

A)   aging
B)   inactivity
C)   genetic dysfunction
D)   environmental stressE) A) and B)
F) B) and D) D

Exam 13: Temporomandibular Joint

Name the four types of nerve endings in the TMJ.

Correct AnswerverifiedPacinian nerve endings (pressure receptors),Ruffini nerve endings (temperature endings),Meissner nerve endings (touch receptors),free nerve endings (pain endings)

The articular disk is thin but highly vascular.

Correct AnswerverifiedShow Answer

Identify the four muscles of mastication.

Correct AnswerverifiedMedial pterygoid,lat...View AnswerShow Answer

Which of the following is a function of the temporomandibular joint capsule?

Correct AnswerverifiedShow Answer

Cartilage-bone remodeling is not possible.

Correct AnswerverifiedShow Answer

A mature mandibular condyle is which shape?

Correct AnswerverifiedShow Answer

The articular fossa undergoes which developmental change?

Correct AnswerverifiedShow Answer

The ___________ compartment of the temporomandibular cavity is bound superiorly by the articular fossa and inferiorly by the disk.

Correct AnswerverifiedShow Answer

More blood vessels innervate the lateral and medial surfaces of the articular disk than the anterior and posterior areas.

Correct AnswerverifiedShow Answer

Every individual has eight muscles of mastication.

Correct AnswerverifiedShow Answer

The action of the lower half of the TMJ is a gliding motion.

Correct AnswerverifiedShow Answer

Which ligament attaches to the lateral part of the disk?

Correct AnswerverifiedShow Answer

The heads of mandibular condyles form secondary ossification centers.Secondary ossification centers produce epiphyseal lines (cartilage-bone junctions) .

Correct AnswerverifiedShow Answer

Which of the following is a function of the lateral ligament of the temporomandibular joint?

Correct AnswerverifiedShow Answer

The postnatal condylar head is a thick band of ___________.

Correct AnswerverifiedShow Answer

Which of the following is not a function of the temporomandibular joint (TMJ) ?

Correct AnswerverifiedC

The synovial membrane is associated with numerous capillaries and _________.

Correct AnswerverifiedShow Answer

At birth,condylar heads are round and covered with a thick layer of cartilage.

Correct AnswerverifiedShow Answer

The lateral pterygoid muscle does which of the following?

Correct AnswerverifiedShow Answer

Articular remodeling is a response to _______________.

Correct AnswerverifiedD

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Pacinian nerve endings (pressure receptors),Ruffini nerve endings (temperature endings),Meissner nerve endings (touch receptors),free nerve endings (pain endings)

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Medial pterygoid,lat...
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C

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D