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Anatomy I > TMJ > Flashcards

TMJ Flashcards

1
Q

The __ suture separates the temporal bone from the parietal bone

A

squamous

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2
Q

The lateral border of the infratemporal fossa is the medial side of the ___ of the ___

A

ramus of the mandible

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3
Q

The medial border of the infratemporal fossa is the lateral portion of the ___ plate.

A

pterygoid

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4
Q

The anterior border of the infratemporal fossa is the posterior aspect of the __ bone.

A

maxilla

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5
Q

The posterior border of the infratemporal fossa is the ___ plate.

A

tympanic

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6
Q

The ___ fossa is the concave superior portion/surface of the posterior TMJ.

A

mandibular

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7
Q

The ___ tubercle is part of the superior surface of the anterior TMJ and is convex.

A

articular

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8
Q

On the superior portion of the TMJ, we have the inferior portion of the __ arch and ___ bone where it is going from concave to convex.

A

zygomatic; temporal

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9
Q

The _____ process is involved in the movement of the TMJ.

A

styloid

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10
Q

The ramus has a ___ process.

A

condylar

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11
Q

A ___ process has a head and a neck

A

condylar

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12
Q

The condylar process is the (superior/inferior) portion of the TMJ

A

inferior

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13
Q

(Anterior/Posterior) to the condylar process is the ____ process of the TMJ

A

Anterior; coronoid

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14
Q

The coronoid process of the TMJ is an attachment site to the ____ muscle

A

temporalis

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15
Q

Between the condylar process and the coronoid process is the ____ notch.

A

mandibular

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16
Q

If we follow our way down the vertebral ramus to where it almost turns 90 degrees, that turning point is known as the ___ of the mandible.

A

angle

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17
Q

Inside of the ramus there is an area with a bony process called the ____. It is a small bony process at the entrance of the mandibular foramen.

A

lingula

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18
Q

The mandibular foramen is the entrance to the ____ nerve.

A

inferior alveolar

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19
Q

The pars alveolaris is the sockets that our ___ go in

A

teeth

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20
Q

The _____ nerve runs right underneath the pars alveolaris

A

inferior alveolar

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21
Q

The ___ nerve provides sensory input to the teeth and also provides sensory input as it exits the mental foramen in which it changes its’ name to the ___ nerve

A

inferior alveolar; mental

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22
Q

The __ nerve supplies sensory input to the skin of the chin and the anterior portion of the lower jaw

A

mental

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23
Q

The TMJ has a joint capsule so it is a ___ joint

A

synovial

24
Q

The TMJ has a ligament that is called the ___ ligament and provides lateral reinforcement of the capsule

A

lateral

25
Q

Typically the articular surface of a joint is covered by hyaline cartilage, the TMJ is covered by ____ which indicates that it has to resist compressive and shear forces.

A

fibrocartilage

26
Q

The TMJ capsule has an outer fibrous layer and an inner synovial layer and it is supported by the thick strong ___ ligament

A

lateral

27
Q

In-between the two joint spaces in the TMJ there is an intraarticular disk and this disk is not made like normal fibrocartilaginous disks. This disk is made up of a form of (loose/dense) fibrous connective tissue and some fibrocartilage.

A

dense

28
Q

In most cases the intraarticular disk of the TMJ is (complete/incomplete) and it creates a superior cavity and an inferior cavity.

A

complete

29
Q

From the disk to the temporal bone is a (loose/tight) capsule and from the disk to the mandibular bone is a (loose/tight) capsule and that is important as you learn the arthrokinematics

A

loose; tight

30
Q

On the posterior portion of the articular disk it has what is called ____ tissue. This tissue attaches to the (anterior/posterior) aspect of the disk and capsule. The retrodiscal tissue is considered (loose/tight).

A

retrodiscal; posterior; loose

31
Q

The retrodiscal tissue will resist (anterior/posterior) disk movement but remember it is loose so it will allow some (anterior/posterior) movement.

A

anterior; anterior

32
Q

Anteriorly, the retrodiscal tissue is attached firmly to the ___ and a portion of the (medial/lateral) pterygoid tendon.

A

capsule; lateral

33
Q

The superior head of the lateral pterygoid has an attachment to the ___.

A

articular disk

34
Q

The inferior head of the lateral pterygoid attaches to the _____

A

mandible

35
Q

The medial and lateral portions of the articular disk are firmly attached to the ____ .

A

capsule

36
Q

The retrodiscal tissue is made up of collagen fibers, elastin fibers, fat, blood vessels, and sensory nerves. So all of these things are on the (anterior/posterior) aspect of the disk.

A

posterior

37
Q

The ____ ligament runs from the sphenoid bone to the lingula of the mandible.

A

sphenomandibular

38
Q

The ____ ligament runs from the styloid process to the angle of the mandible

A

stylomandibular

39
Q

The _____ ligament and the _____ ligament suspend the mandible from the skull and they play a role in the motion of the TMJ.

A

sphenomandibular; stylomandibular

40
Q

The ___ muscle runs from the temporal fossa to the coronoid process

A

temporalis

41
Q

The temporalis muscle is a strong (elevator/depressor) and (protractor/retractor) of the mandible

A

elevator; retractor

42
Q

On the lateral side of the mandible running up to the zygomatic arch we have the ___ muscle and it is a very strong elevator of the mandible

A

masseter

43
Q

The (medial/lateral) pterygoid muscle is coming off of the sphenoid bone and runs to the condylar head and the disk of the TMJ

A

lateral

44
Q

The medial pterygoid is named the MEDIAL pterygoid because it is medial to the ___ bone.

A

sphenoid

45
Q

The medial pterygoid is more (medial/lateral) on the sphenoid bone and is running to the (medial/lateral) side of the ramus of the mandible

A

medial; medial

46
Q

The lateral pterygoid is a little more lateral to the sphenoid bone and it is more (anterior/posterior) in its’ line of pull to the mandible, when it contracts it does a good job of (protruding/retracting) the mandible

A

posterior; protruding

47
Q

When the lateral pterygoid protrudes the mandible it brings the disk (anteriorly/posteriorly).

A

anteriorly

48
Q

The medial pterygoid has a more downward alignment of its fibers and helps in (elevation/depression) of the mandible

A

elevation

49
Q

The medial and lateral pterygoids work (individually/together) to perform a vast array of movements of the mandible

A

together

50
Q

When you open up the jaw you are going to see the ____ artery and the branch of the ___ artery

A

maxillary; external carotid

51
Q

Anterior to the inferior alveolar nerve is another branch of the mandibular nerve called the ____ nerve

A

lingual

52
Q

The lingual nerve (does/does not) enter the mandible

A

does not

53
Q

The mandibular nerve runs right along the (medial/lateral) pterygoid

A

medial

54
Q

The ___ nerve runs underneath the tongue outside of the mandible on the medial side.

A

lingual

55
Q

The chorda tympani joins with the ___ nerve and they are going to run underneath the tongue to supply general sensation to the anterior 2/3 of the ___ .

A

lingual ; tongue

Anatomy I (10 decks)

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