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Unit 4 Part 2 > anterior neck and Muscles > Flashcards

anterior neck and Muscles Flashcards

0
Q

platysma insertion

A

fascia covering parts of pectoralis major and deltoid muscles

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1
Q

platysma orgin

A

inferior border of mandible, skin and subcutaneous tissues over over lower face

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2
Q

platysma innervation

A

cervical branch of facial nerve ( CN VII)

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3
Q

platysma action

A

draws corners of mouth inferiorly and widens as it expresses sadness and fright

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4
Q

sternocleidomastoid orgin

A

lateral surface of mastoid process of temporal bone and lateral half of inferior nuchal line

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5
Q

sternocleidomastoid insertion

A

Sternal Head: anterior surface of manubrium of sternum

Clavicular head: superior surface of medial 3rd clavicle

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6
Q

sternocleidomastoid innervation

A

spinal accessory nerve ( CN XI; motor) C2, C3 nerves (pain/proprioception)

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7
Q

sternocleidomastoid action

A

Unilateral contraction: tilts head same side laterally flexes and turns face superiorly and upward toward opposite side
Bilateral contraction: 1 extends neck at atlanto occipital joints (chin down) 2 flexes cervical vertebrae 3 extends superior cervical vertebrae

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8
Q

Mylohyoid orgin

A

Mylohyoid line of mandible

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9
Q

Mylohyoid insertion

A

Mylohyoid raphe and body of hyoid

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10
Q

Mylohyoid innervation

A

nerve to Mylohyoid branch of inferior aveolar nerve ( from madibular nerve CN V3

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11
Q

Mylohyoid action

A

elevates hyoid , floor of mouth and tongue during swallowing

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12
Q

Geniohyoid orgin

A

inferior mental spine of mandible

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13
Q

Geniohyoid insertion

A

body of hyoid

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14
Q

Geniohyoid innervation

A

C1 via hypoglossal nerve (CN XIII)

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15
Q

Geniohyoid action

A

Pulls hyoid anterosuperiorly; shortens floor of mouth

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16
Q

styloid hyoid orgin

A

styloid process of temporal bone

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17
Q

styloid hyoid insertion

A

body of hyoid

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18
Q

styloidhyoid innervation

A

styloid branch of facial nerve (CN VII)

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19
Q

styloid hyoid action

A

elevates and retracts hyoid, thus elongating floor of mouth

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20
Q

digastric orgin

A

Anterior belly: digastric fossa of mandible

Posterior Belly: mastoid notch of temporal bone

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21
Q

digastric insertion

A

intermediate tendon to body and greater horn of hyoid

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22
Q

digastric innervation

A

Anterior belly: nerve to mylohyoid branch of inferior aveolar nerve

Posterior belly: gastric branch of fascial nerve (CN VII)

23
Q

digastric action

A

working with infrahyoid muscles depresses mandible against resistance : elevates and steadies hyoid during swallowing

24
Q

sternohyoid orgin

A

manubrium of sternum and medial end of clavicle

25
Q

sternohyoid insertion

A

body of hyoid

26
Q

sternohyoid innervation

A

C1-C3 by branchs of ansa cervicalis

27
Q

sternohyoid action

A

depresses hyoid after elevation during swallowing

28
Q

omohyoid orgin

A

superior border of scapula near supra scapular notch

29
Q

omohyoid insertion

A

inferior border of hyoid

30
Q

omohyoid innervation

A

C1-C3 by branchs of ansa cervicalis

31
Q

omohyoid action

A

depresses retracts and steadies hyoid

32
Q

sternothyroid orgin

A

posterior surface of manubrium of sternum

33
Q

sternothyroid insertion

A

oblique line of thyroid cartilage

34
Q

sternothyroid innervation

A

C2, C3 by branch if ansa cervicalis

35
Q

sternothyroid action

A

depresses hyoid and larynx

36
Q

thyrohyoid orgin

A

oblique line of thyroid cartilage

37
Q

thyrohyoid insertion

A

inferior border of body and greater horn of hyoid

38
Q

thyrohyoid innervation

A

C1 via Hypoglossal nerve

39
Q

thyrohyoid action

A

depresses hyoid and elevates laynx

40
Q

Buccinator ( cheek muscle) orgin

A

Mandible , aveolar process of maxilla and mandible,

41
Q

Buccinator insertion

A

angle of mouth Imodiolus); orbicularis oris

42
Q

Buccinator action

A

presses teeth against molar teeth, works with tongue to keep food between occlusal surfaces and out of oral vestibule

43
Q

temporalis orgin

A

floor of temporal fossa and deep surface of temporalis fascia

44
Q

temporalis insertion

A

tip and medial surface of coronoid process and anterior border of ramus of mandible

45
Q

temporalis innervation

A

anterior trunk of mandibular nerve (CN V3) via deep temporal nerves

46
Q

temporalis action

A

elevates mandible closing jaw retractors of mandible

47
Q

masseter orgin

A

inferior border and medial surface of maxillary process of zygomatic bone and zygomatic arch

48
Q

masseter insertion

A

angle and lateral surface of ramus of mandible

49
Q

masseter innervation

A

anterior trunk of mandibular nerve (CN V3) via masseteric nerve

50
Q

masseter action

A

elevates mandible

51
Q

orbicularis oculi orgin

A

medial orbital margin medial palpebral ligament, lacrimal bone

52
Q

orbicularis oculi insertion

A

skin around major orbital , superior and inferior tarsi

53
Q

orbicularis oculi action

A

closes eye lids

54
Q

orbicularis oris orgin

A

medial maxilla and mandible

55
Q

orbicularis oris insertion

A

mucous membrane of lips

56
Q

orbicularis oris action

A

tonus closes mouth compresses protrudes lips

Unit 4 Part 2 (2 decks)

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