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Human Anatomy 2 > TMJ and extraocccular muscles > Flashcards

TMJ and extraocccular muscles Flashcards

1
Q

TMJ anatomy

A
  • articulation
  • mandibular condyle
  • with mandibular fossa of temporal joint
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2
Q

Lateral pterygoid

A

Origin:

  • maxilla and lateral pterygoid plate

insertion:

  • capsule of TMJ and neck of mandible

Action:

  • unilateral = mandibular lateral deviation
  • bilateral= mandibular protrusion

Insertion:

  • trigeminal nerve
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3
Q

Medial pterygoid

A

Origin:

  • maxila
  • lateral pterygoid plate

Insertion:

  • angle of mandible

Action:

  • Unilateral = mandibular lateral deviation
  • Bilateral = mandibular protrusion and elevation

Innervation:

  • trigeminal
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4
Q

Masseter

A

Origin:

  • zygomatic arch

Insertion:

  • ramus of mandible

Action:

  • mandibular elevation
  • retraction

innervation:

  • trigeminal nerve
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5
Q

temporalis

A

origin:

  • temporal fossa

insertion:

  • coronoid process of mandible

Action:

  • mandibular elevation
  • retraction

Innervation:

  • trigeminal nerve
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6
Q

accessory muscles for the TMJ

A

suprahyoids

  • diagastric
  • stylohyoid
  • mylohyoid
  • geniohyoid
  • assist with mandible depression and hyoid mobility

infrahyoids

  • sternohyoid
  • omohyoid
  • sternothyroid
  • thyrohyoid
  • hyoid mobility and stability
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7
Q

Clinical presentation of TMJ dysfunction

A
  • joint sounds: may be assoicated with pain
  • TTP over joint
  • pt c/o of locking: disc prevents translation during opening and closing
  • limitation of jaw movement
  • hypermobility
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8
Q

TMJ

refered pain

A
  • head/temporal region
  • face
  • ear
  • mandible
  • neck
  • eye
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9
Q

Innervation for referred pain of TMJ

A
  • retrodiscal tissues
  • joint capsule
  • ligaments: disc alterations
  • can be related to the TMJ myofascial trigger points of SCM, masseter, medial and lateral pterygoid
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10
Q

Postures affect on the TMJ

A
  • forward head and rounded shoulders
  • retraction of pterygoid musculature
  • compresses TMJ/restricts motion
  • protruded/depressed mandible
  • tight infra/suprahyoid muscules
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11
Q

TMJ

PT diagnostic tools/interventions

A
  • therabite: norms = 35-50 opening/12 mm lateral shift
  • tongue depression: ispilateral side pain => masseter problem/contralaterl side pain = joint dysfunction
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12
Q

TMJ education

A
  • mouth guard
  • gum and ice chewing
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13
Q

TMJ

exercises

A
  • chin tucks
  • cervical mobility
  • scapular retractions
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14
Q

Eye rectus muscles

A
  • superior rectus: elevation of eye
  • inferior rectus: depression of eye
  • lateral rectus: abduction of eye
  • medial rectus: adduction of eye
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15
Q

Superior oblique eye muscles vs inferior oblique eye muscle

A
  • superior oblique: depression and abduction of the eye
  • inferior oblique: elevation and abduction of the ey
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16
Q

Lateral palpebrae

A
  • attaches to the posterior portion of the orbit uppper eyelid
  • raises upper eyelide
17
Q

Trochlear nerve

A
  • superior oblique muscle
18
Q

abducens

A
  • lateral rectus muscles
19
Q

oculomotor

A
  • superior rectus
  • inferior rectus
  • medial rectus
  • inferior oblique
  • levator palpebrae superioris
20
Q

Clinical exam of eye muscles and innervation

A
  • crnaial nerve testing 3,4,6

smooth pursuits

  • horizontal direction: medial and lateral rectus
  • lateral vertical direction: superior rectus and inferior rectus
  • medial vertical direction: inferior oblique and superior oblique
21
Q

Masseter Trigger points

what is it and PT interventions

A
  • point tenderness located over the masseter
  • trigger point massage
  • education: gum chewing, ice crunching, mouth guard
22
Q

Internuclear Opthalmoplegia

PT intervention

A
  • damage/lesion to medial longitudinal fasciculus (interneuron to cranial Nerves III and VI
  • ipsilateral adduction deficit, contralateral abduction nystagmus
  • visual tracking, walking with head turns, saccades
23
Q

Jaw differential diagnosis

A
  • possibel cardiac issues
  • dental problem
  • determine what the cause is
  • recent dental appointment/hygiene
24
Q

Eye dysfunction

A
  • macular degeneration
  • vestibular dysfunction

Human Anatomy 2 (14 decks)

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