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Regional Anatomy > Muscles of the head and neck region > Flashcards

Muscles of the head and neck region Flashcards

1
Q

Frontalis / Occipitofrontalis

A

Raised eyebrow, wow

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2
Q

Orbicularis Oris

Orbi circular, oris oral

A

Closes mouth, pout, kissing

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3
Q

Zygomaticus Major & Minor

Zygo-smile

A

Smiling, elevate upper lip

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4
Q

Levator Labil Superioris

Levator-elevate, labil-lip, superioris-upper

A

Opening upper lip

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5
Q

Depressor Labil Inferiority

Depressor-lower, labil-lip, inferioris-lower

A

Lower the lower lip

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6
Q

Depressor Anguli Oris

Anguli-angle, oris-mouth

A

Lower angle mouth - sad face

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7
Q

Levator Anguli Oris

A

Elevate angle mouth, helps smile

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8
Q

Buccinators

A

Cheek, fill air in mouth, drink with straw

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9
Q

Mentalis

A

Drawing the lower lip

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10
Q

Platysma

A

A: draw corners of mouth inferior and skin of neck superior

O: Inferior border of mandible, skin lower face

I: Fascia covering superior parts of pectoralis major and deltoid

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11
Q

Orbicularis Oculi

Orbicularis-circle, Oculi-eye

A

Closes eye, winking

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12
Q

Corrugator Supercilli

A

Create vertical furrows on forehead

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13
Q

Levator Palpebral Superioris

Levator-elevates, palpebrae-eyelid, superioris-upper

A

Open the eye

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14
Q

2 categories of hyoid muscles

A

Suprahyoid-above hyoid bone

Infrahyoid-between clavicle and hyoid bone

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15
Q

4 Suprahyoid Muscles

A

Diagastric (diag)
Geniohyoid (genio)
Mylohyloid (mylo)
Stylohyloid (stylo)

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16
Q

Stylohyloid

A

Origin styloid process of the temporal bone

Insert body of the hyoid bone

Action elevate the hyoid bone

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17
Q

Diagastric

A

Origin medial surface mastoid process; inferior surface of mandible body

Inserts body hyoid bone

Action elevate the hyoid bone

18
Q

Mylohyloid

A

Origin inferior surface mandible
Insert body of hyoid bone
Action elevate hyoid bone

19
Q

Geniohyoid

A

Origin Inf surface of mandible
Insert body of hyoid bone
Action elevate hyoid bone

20
Q

4 infrahyoid strap muscles

A

Thyrohyoid
Omohyoid
Sternohyoid
Sternothroid

21
Q

Sternohyloid

A

Origin manubrium of sternum; medial end of clavicle
Insert inf border of body of hyoid bone
Action depresses hyoid bone

22
Q

Omohyoid

Omo-shoulder

A

Origin superior border of scapula
Insert inf border of body of hyoid
Action depresses hyoid bone

23
Q

Thyrohyoid

A

Origin thyroid cartilage
Insert inf borders of body of hyoid
Action depresses hyoid

24
Q

Sternothyroid

A

Origin manubrium of sternum
Insert thyroid cartilage
Action depresses thyroid cartilage

25
Q

Temporalis (temporal) muscle

A

Origin temporal fossa
Insert coronoid process of mandible
Action close or elevate mouth

26
Q

Masseter Muscle

A

Origin zygomatic process of temporal bone
Zygomatic arch

Insert angle & ramus of mandible
Action grinds food / chew

27
Q

Lateral Pterygoid Muscle

A

Origin sup part-greater wing of sphenoid
Inf part-lateral surface of ptergoid plate
Insert: on capsule of TMJ (condyle of mandible
Action lateral deviation of mandible (jaw side to side)

28
Q

Medial Pterygoid muscle

A

Origin med surface of pterygoid plate, tuberosity of maxilla
Insert medial surface of angle & ramus of mandible
Action mini grinding

29
Q

Articulating surfaces of TMJ

A

Condyle of mandible
Articulating tubercle of temporal bone
Mandibular Fossa

30
Q

Joint capsule of TMJ

2 membranes

A

Superior & inferior synovial membranes

31
Q

Attachments of joint capsule of TMJ

A

Articular area of temporal bone

Neck of mandible

32
Q

3 ligaments of TMJ

A

Lateral
Stylomandibular
Sphenomandibular

33
Q

Lateral ligament of TMJ (o & i?)

A

Zygo process of temporal bone

Ramus of mandible

34
Q

Stylomandibular ligament of TMJ (o & a?)

A

Styloid process to medial border of angle of mandible

35
Q

Sphenomandibular ligament of TMJ (o & a?)

A

From inf borders of sphenoid bone

Inserts medial surface of ramus of mandible

36
Q

Sternocleidomastoid (SCM)
Stern: sternum
Cleid: clavicle
Mastoid: mastoid process

A

O: lateral mastoid process of temporal bone & lateral 1/2 of superior nuchal line
I: sternal head & clavicular head
A: Bilateral - extends of the head, flexes and extends cervical vertebrae, elevates clavicles and manubrium
Unilateral - head tilt to same side, head rotation

37
Q

Trapezius

A

O: medial third Superior nuchal line and external occipital protuberance and spinous process C 7 to T12, lumbar & sacral spinous process
I: lateral third Clavicle, acronym & spine of scapula
A: Superior fibres rotate scapula middle fibres retract scapula inferior fibres depress shoulder superior and inferior rotate scapular upwards

38
Q

Anterior Prevertebral Muscles

Deep structure

A

Longus Collins
Longus Capitus
Rectus Capitus Anterior
Anterior Scalene

39
Q

Superficial neck muscles

A

Platysma
Sternocleidomastoid
Trapezius

40
Q

Longus Colli

A

O: bodies of C5 through T3, transverse processes of C3 through C5
I: tubercle on anterior arch of atlas, bodies of C1 to C3, trans pros of C3 to C6
A: flexes neck with rotation to opposite side unilaterally, rotate head and neck to same side, bilaterally flex head and neck

41
Q

Longus Capitus

A

O: anterior transverse processes of C3 to C6

I: inferior surface of occiput

A: unilaterally-laterally flex head and neck same side
Bilaterally flex head and neck

42
Q

Rectis Capitus Interior

A

O: base of skull, anterior to occipital condyle
I: anterior surface of lateral mass of atlas C1
A: flex head

Regional Anatomy (2 decks)

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