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PHTH 511: Anatomy > Neck OIIA's > Flashcards

Neck OIIA's Flashcards

1
Q

Origin: Stylohyoid

A

Base of styloid process of temporal bone

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2
Q

Insertion: Stylohyoid

A

Greater horns of hyoid

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3
Q

Innervation: Stylohyoid

A

Facial nerve (CN7)

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4
Q

Action: Stylohyoid

A

Pulls the hyoid bone posterosuperiorly during swallowing

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5
Q

Origin: Digastric

A

-Anterior belly: digastric fossa
-Posterior belly: mastoid process of temporal bone

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6
Q

Insertion: Digastric

A

Tendon between two bellies to the body of the hyoid

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7
Q

Innervation: Digastric

A

Mylohyoid nerve

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8
Q

Action: Digastric

A

Elevates the hyoid bone & depresses the mandible

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9
Q

Origin: Mylohyoid

A

Mylohyoid line on mandible

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10
Q

Insertion: Mylohyoid

A

Body of hyoid

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11
Q

Innervation: Mylohyoid

A

Mylohyoid nerve

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12
Q

Action: Mylohyoid

A

Support and elevation of floor of mouth; elevation of hyoid

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13
Q

Origin: Geniohyoid

A

Inferior mental spine

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14
Q

Insertion: Geniohyoid

A

Body of hyoid

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15
Q

Innervation: Geniohyoid

A

Anterior ramus from C1

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16
Q

Action: Geniohyoid

A

Fixation of mandible; pulls mandible inward

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17
Q

Origin: Sternohyoid

A

Posterior aspect of sternoclavicular joint

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18
Q

Insertion: Sternohyoid

A

Body of hyoid

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19
Q

Innervation: Sternohyoid

A

Ansa cervicalis

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20
Q

Action: Sternohyoid

A

Depresses hyoid bone after swallowing

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21
Q

Origin: Omohyoid

A

Superior border of scapula

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22
Q

Insertion: Omohyoid

A

Body of hyoid

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23
Q

Innervation: Omohyoid

A

Anterior rami of C1 to C3

24
Q

Action: Omohyoid

A

Depresses hyoid bone

25
Q

Origin: Thyrohyoid

A

Thyroid cartilage

26
Q

Insertion: Thyrohyoid

A

Greater horn of hyoid

27
Q

Innervation: Thyrohyoid

A

Anterior ramus of C1

28
Q

Action: Thyrohyoid

A

Depresses the hyoid bone and elevates the thyroid cartilage

29
Q

Origin: Sternothyroid

30
Q

Insertion: Sternothyroid

A

Oblique line on lamina of thyroid cartilage

31
Q

Innervation: Sternothyroid

A

Ansa cervicalis

32
Q

Action: Sternothyroid

A

Draws larynx (thyroid cartilage) downward

33
Q

Origin: Platysma

A

Infra & supraclavicular regions

34
Q

Insertion: Platysma

A

Base of mandible; skin of cheek & angle of mouth

35
Q

Innervation: Platysma

A

Facial nerve

36
Q

Action: Platysma

A

Draws corners of mouth downward & protects the major superficial vessels of the neck

37
Q

Origin: Sternocleidomastoid

A

-Sternal head: manubrium
-Clavicular head: medial 1/3 of clavicle

38
Q

Insertion: Sternocleidomastoid

A

Mastoid process

39
Q

Innervation: Sternocleidomastoid

A

Accessory nerve

40
Q

Action: Sternocleidomastoid

A

-Flexing the head and neck laterally
-Rotates the head to the opposite site

41
Q

Origin: Splenius capitis

A

Spinous processes of C7-T3 & ligamentum nuchae

42
Q

Insertion: Splenius capitis

A

Mastoid process

43
Q

Innervation: Splenius capitis

A

Posterior rami of C1-C6

44
Q

Action: Splenius capitis

A

-Ipsilateral rotation of the head
-Extension & lateral flexion of spine & head

45
Q

Origin: Posterior scalene

A

Posterior tubercles of transverse processes of vertebrae C5-C7

46
Q

Insertion: Posterior scalene

A

Lateral surface of 2nd rib

47
Q

Innervation: Posterior scalene

A

Anterior rami of C6-C8

48
Q

Action: Posterior scalene

A

Elevation of 2nd rib and lateral flexion

49
Q

Origin: Middle scalene

A

Posterior tubercles of the transverse process of vertebrae C2-C7

50
Q

Insertion: Middle scalene

A

Upper surface of 1st rib

51
Q

Innervation: Middle scalene

A

Anterior rami of C3-C8

52
Q

Action: Middle scalene

A

Elevation of rib 1

53
Q

Origin: Anterior scalene

A

Anterior tubercles of transverse processes of vertebrae C3-C6

54
Q

Insertion: Anterior scalene

A

Scalene tubercle on the 1st rib

55
Q

Innervation: Anterior scalene

A

Anterior rami of C4 to C6

56
Q

Action: Anterior scalene

A

Elevation of rib 1

PHTH 511: Anatomy (9 decks)

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