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Kinesiology > Chapter 14 - TMJ > Flashcards

Chapter 14 - TMJ Flashcards

1
Q

Zygomatic bones

A

forms the prominence of the cheek and contributes the lateral wall and floor of the eye orbit

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2
Q

Maxillary bone

A

upper jaw, located in the middle part of the face and houses the upper teeth

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3
Q

Hyoid bone

A

horseshoe-shaped bone lying just superior to the thyroid cartilage at about the level of C3

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4
Q

Thyroid cartilage

A

largest of the bibe cartilages of the larynx

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5
Q

Lateral ligament or temporal mandibular ligament

A

Anteriorly, it attaches to the neck of the mandibular condyle and disk and then runs superiorly to the articular tubercle of the temporal bone

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6
Q

Sphenomandibular ligament

A

attaches to the spine of the sphenoid bone and runs to the middle of the ramus on the internal surface of the mandible
- suspends the mandible and limits excessive anterior motion

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7
Q

Stylodmandibular ligament

A

runs from the styloid process of the temporal bone to the posterior inferior border of the mandible’s ramus
- lies in between the masseter and medial pterygoid muscles and plays a role in limiting excessive anterior motion

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8
Q

Articular disk of the TMJ

A

similar to the articular disk of the sternoclavicular joint
- connected circumferentially to the capsule and tendon of the lateral pterygoid

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9
Q

Temporalis origin

A

temporal fossa

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10
Q

Temporalis insertion

A

coronoid process and ramus of mandible

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11
Q

Temporalis action - bilaterally

A

elevation, retrusion (posterior fibers)

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12
Q

Temporalis action - unilaterally

A

ipsilateral lateral deviation

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13
Q

Masseter origin

A

zygomatic arch of temporal bone and zygomatic process of axilla

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14
Q

Masseter insertion

A

angle of the ramus and coronoid process of mandible

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15
Q

Masseter action - bilaterally

A

elevation

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16
Q

Masseter action - unilaterally

A

ipsilateral lateral deviation

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17
Q

Masseter nerve

A

mandibular branch of trigeminal nerve (cranial nerve V)

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18
Q

Medial pterygoid origin

A

lateral pterygoid plate of the sphenoid bone and tuberosity of the maxilla

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19
Q

Medial pterygoid insertion

A

ramus and angle of the mandible

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20
Q

Medial pterygoid action - bilaterally

A

elevation, protrusion

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21
Q

Medial pterygoid action - unilaterally

A

contralateral lateral deviation

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22
Q

Medial pterygoid nerve

A

mandibular brach of trigeminal nerve (crainal nerve V)

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23
Q

Lateral pterygoid origin

A

lateral pterygoid plate and greater wing of the sphenoid

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24
Q

Lateral pterygoid insertion

A

mandibular condyle and articular disk

25
Q

Lateral pterygoid action - bilaterally

A

depression, protrusion

26
Q

Lateral pterygoid action - unilaterally

A

contralateral lateral deviation

27
Q

Lateral pterygoid nerve

A

mandibular branch of trigeminal nerve (cranial nerve V)

28
Q

Mylohyoid origin

A

interior medial mandible

29
Q

Mylohyoid insertion

A

hyoid

30
Q

Mylohyoid action

A

assists in depressing mandible

31
Q

Mylohyoid nerve

A

branch of trigeminal nerve (cranial nerve V)

32
Q

Geniohyoid origin

A

mental spine of mandible

33
Q

Geniohyoid insertion

A

hyoid

34
Q

Geniohyoid action

A

assist in depressing mandible

35
Q

Geniohyoid nerve

A

C1 via hypoglossal nerve (cranial nerve Xll)

36
Q

Stylohyoid origin

A

styloid process of temporal bone

37
Q

Stylohyoid insertion

A

hyoid

38
Q

Stylohyoid action

A

assists in depressing mandible

39
Q

Stylohyoid nerve

A

branch of facial nerve (cranial nerve Vll)

40
Q

Digastric origin - anterior

A

internal inferior mandible

41
Q

Digastric origin - posterior

A

mastoid process

42
Q

Digastric insertion

A

via pulleylike tendon to hyoid

43
Q

Digastric action

A

assists in depressing mandible

44
Q

Digastric nerve

A

mandibular branch of trigeminal nerve (cranial nerve V) and branch of facial nerve (cranial nerve Vll)

45
Q

Sternohyoid origin

A

medial end of clavicle, sternoclavicular ligament, and manubrium of sternum

46
Q

Sternohyoid insertion

A

inferior border of hyoid bone

47
Q

Sternohyoid action

A

stabilize hyoid bone

48
Q

Sternohyoid nerve

A

C1 to C3 via hypoglossal nerve (cranial nerve Xll)

49
Q

Sternothryoid orign

A

manubrium of sternum and cartilage of the first rib

50
Q

Sternothryoid insertion

A

thyroid cartilage

51
Q

Sternothryoid action

A

stabilize hyoid bone

52
Q

Sternothryoid nerve

A

C1 to C3 via hypoglossal nerve (cranial nerve Xll)

53
Q

Thyrohyroid origin

A

thryoid cartilage

54
Q

Thyrohyroid insertion

A

inferior border of hyoid bone

55
Q

Thyrohyroid action

A

stabilize hyoid bone

56
Q

Omohyoid origin

A

superior border of the scaoula

57
Q

Omohyoid insertion

A

inferior border of hyoid bone

58
Q

Omohyoid action

A

stabilize hyoid bone

Kinesiology (14 decks)

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