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Anatomy > Muscles of the neck > Flashcards

Muscles of the neck Flashcards

1
Q

Platysma Rough origin

A

Subcutaneous fascia covering the pectoralis major and deltoid muscles

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2
Q

Platysma Rough Insertion

A

Lower part of the mandible and subcutaneous fascia and muscles of the jaw and mouth

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3
Q

Platysma Innervation

A

Cervial branch of facial nerve (CN VII)

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4
Q

Platysma Action

A

Draws down the lower lip and angle of mouth, tenses skin of neck; helps depress mandible

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5
Q

Sternocleidomastoid Origin

A

Sternal Head: Manubrium of sternum

Clavicular Head: Medial 3rd of superior border of clavicle

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6
Q

Sternocleidomastoid insertion

A

Mastoid process of temporal bone and lateral 1/2 of superior nuchal line

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7
Q

Sternocleidomastoid Innervation

A

Accessory Nerve (CN XI) and branches of cervical spinal nerve (C2-C4)

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8
Q

Sternocleidomastoid Action

A

Unilateral contraction - lateral neck flexion to same side and rotation to opposite side

Bilateral contraction - Neck flexion; with head fixed assists in elevating the thorax during forced inspiration

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9
Q

Anterior scalene Origin

A

Anterior tubercle of the transverse processes of C3-C6

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10
Q

Anterior scalene Insertion

A

Scalene tubercle and upper surface of first rib

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11
Q

Anterior scalene Innervation

A

Ventral Rami of C4-C7

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12
Q

Anterior scalene Action

A

Elevation of first rib, lateral and forward flexion of neck

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13
Q

Middle Scalene Origin

A

Posterior tubercles of the transverse process of C2-C7

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14
Q

Middle Scalene Insertion

A

Upper surface of the first rib, posterior to groove for subclavian artery

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15
Q

Middle Scalene Innervation

A

Ventral Rami of C3-C7

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16
Q

Middle Scalene Action

A

Raises first Rib; lateral neck flexion

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17
Q

Posterior Scalene Origin

A

Posterior tubercles of the transverse process of C4-C6

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18
Q

Posterior Scalene Insertion

A

Superior surface of second rib

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19
Q

Posterior Scalene Innervation

A

Ventral Rami C5-C7

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20
Q

Posterior Scalene Action

A

Raises 2nd rib; lateral neck flexion

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21
Q

Digastric Origin

A

Temporal bone

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22
Q

Digastric Insertion

A

Mandible

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23
Q

Digastric Innervation

A

Anterior Belly - Mandibular Nerve (CN V3)

Posterior Belly - Cervical Branch of the Facial Nerve (CN VII)

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24
Q

Digastric Action

A

Elevates and steadies the hyoid bone during swallowing and speech; If hyoid is fixed, helps open the mouth and depresses the madible

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25
Q

Stylohyoid Rough Origin

A

Styloid process of temporal bone

26
Q

Stylohyoid Rough Insertion

A

Body of hyoid bone at junction of greater cornu

27
Q

Stylohyoid Innervation

A

Cervical branch of facial nerve (CNVII)

28
Q

Stylohyoid Action

A

Elevates and retracts the hyoid elongating the floor of the mouth during swallowing

29
Q

Mylohyoid Rough Origin

A

Mylohyoid line of Mandible

30
Q

Mylohyoid Rough Insertion

A

Upper border of Hyoid bone and median raphe

31
Q

Mylohyoid Innervation

A

Mandibular nerve (CN V3)

32
Q

Mylohyoid Action

A

Elevates Hyoid bone and raises floor of mouth; together with opposite side, forms floor of mouth

33
Q

Geniohyoid Rough origin

A

Inferior Mental spine on inner surface of mandible

34
Q

Geniohyoid Rough insertion

A

Anterior surface of body of hyoid bone

35
Q

Geniohyoid Innervation

A

First Cervical Nerve (C1)

36
Q

Geniohyoid action

A

Pulls hyoid bone superiorly and anteriorly shortening the floor of the mouth; pulls mandible down and inwards when hyoid bone is fixed

37
Q

Sternohyoid Origin

A

Posterior aspect of sternoclavicular joint and manubrium of sternum

38
Q

Sternohyoid Insertion

A

lower margin of the body of the hyoid bone

39
Q

Sternohyoid Innervation

A

Ansa Cervicalis (c1-C3)

40
Q

Sternohyoid Action

A

Depresses hyoid bone after swallowing

41
Q

Omohyoid Rough Origin

A

Inferior belly: superior border of scapula medial to suprascaular notch

Superior belly: Tendon of inferior belly near Sternocleidomastoid

42
Q

Omohyoid Rough Insertion

A

Inferior belly: Ends as a tendon (bound to clavicle by central tendon)

Superior belly: Inserts on lower border of hyoid bone

43
Q

Omohyoid Innervation

A

Ansa Cervicalis (C1-C3)

44
Q

Omohyoid Action

A

Depresses and retracts the Hyoid bone.

45
Q

Sternothyroid Origin

A

Posterior surface of manubrium of sternum

46
Q

Sternothyroid Insertion

A

Oblique line on lamina of thyroid cartilage

47
Q

Sternothyroid Innervation

A

Ansa Cervicalis (C1-C3)

48
Q

Sternothyroid Action

A

Depresses Larynx

49
Q

Thyrohyoid Origin

A

Oblique line ont he lamina of the thyroid cartilage

50
Q

Thyrohyoid Insertion

A

Greater cornu and body of hyoid bone

51
Q

Thyrohyoid Innervation

A

First cervical Nerve (C1)

52
Q

Thyrohyoid Action

A

Depresses Hyoid; and elevates larynx if hyoid is fixed

53
Q

Extrinsic Muscles of the Larynx that Depresses the Larynx

A
  1. Omohyoid
  2. Sternohyoid
  3. Sternothyroid
54
Q

Extrinsic Muscles of the Larynx that Elevators the Larynx

A
  1. Digastric
  2. Stylohyoid
  3. Mylohyoid
  4. Geniohyoid
  5. Stylopharyngeus
  6. Salpingopharyngeus
  7. Palatopharyngeus
55
Q

Infrahyoid Muscles

A
  1. Sternohyoid
  2. Sternothyroid
  3. Thyrohyoid
  4. Superior belly of omohyoid
56
Q

Suprahyoid Muscles

A
  1. Mylohyoid
  2. Geniohyoid
  3. Stylohyoid
  4. Digastric
57
Q

Intrinsic Muscles of the tongue

A
  1. Longitudinalis Superior
  2. Longitudinalis Inferior
  3. Transversus
  4. Verticalis
58
Q

Extrinsic Muscles of the tongue

A
  1. Genioglossus
  2. Hyoglossus
  3. Styloglossus
  4. Palatoglossus
59
Q

Muscles of the Pharynx

A
  1. Superior Constrictor
  2. Middle Constrictor
  3. Inferior Constrictor
  4. Salpingopharyngeus
  5. Stylopharyngeus
  6. Palatopharyngeus
60
Q

Muscles of the Palate

A
  1. Musuculus Uvulae
  2. Tensor veli palatini
  3. Levator Veli Palatini
  4. Palatopharyngeus
  5. Palatoglossus

Anatomy (18 decks)

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