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Gross Anatomy > Lab Exam 2: Origins/Insertions > Flashcards

Lab Exam 2: Origins/Insertions Flashcards

1
Q

Ligament attachment of hyoid bone

A
  • Stylohyoid ligamnet

- Thyrohyoid membrane

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2
Q

Platysma Innervation

A
  • Facial nerve (CN VII)
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3
Q

Platysma Function

A
  • Depress mandible

- Facial expression

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4
Q

Platysma Attachment

A
  • Deep fascia upper chest

- Mandible

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5
Q

Sternocleidomastoid (SCM) Origins

A
  • Sternal: manubrium

- Clavicular: medial 1/3 of clavicle

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6
Q

SCM Insertion

A
  • Mastoid process

- Superior nuchal line

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7
Q

SCM Innervation

A
  • Spinal accessory nerve (CN XI)
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8
Q

Posterior Triangle Boundaries

A
  • A: posterior border of SCM
  • P: anterior border of trapezius
  • I: middle 1/3 of clavicle
  • S: Jxn of trap and SCM
  • R: overlying fascia
  • F: scalenes, splenius capitis, levator scapulae
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9
Q

Anterior Triangle Boundaries

A
  • A: midline of neck
  • P: anterior border of SCM
  • I: jugular notch
  • S: inferior border of mandible
  • R: overlying fascia
  • F: pharynx, larynx, thyroid gland
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10
Q

Tributaries of EJV

A
  • Anterior jugular
  • Cervicodorsal
  • Suprascapular veins
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11
Q

Cervical Plexus Location

A
  • Posterior border of SCM while it’s laid flat
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12
Q

Anterior Cervical Muscles Funtcion

A
  • Stabilize/move hyoid bone and larynx
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13
Q

Suprahyoid Muscles

A
  • Connect the hyoid bone and cranium

- Elevate the hyoid (swallowing)

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14
Q

Mylohyoid Attachments

A
  • Mylohyoid line

- Body of hyoid

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15
Q

Mylohyoid Innervation

A
  • Nerve to mylohyoid (CN V, mandibular division of trigeminal)
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16
Q

Mylohyoid Function

A
  • Elevate hyoid

- Elevate floor of mouth

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17
Q

Geniohyoid Attachments

A
  • Inferior mental spine of mandible

- Body of hyoid

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18
Q

Geniohyoid Innervation

A
  • C1 fibers traveling with hypoglossal nerve
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19
Q

Geniohyoid Function

A
  • Pulls hyoid anterosuperiorly
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20
Q

Stylohyoid Attachments

A
  • Styloid process of temporal bone

- Body of hyoid

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21
Q

Stylohyoid Innervation

A
  • Facial nerve (CN VII)
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22
Q

Stylohyoid Function

A
  • Elevates and retracts hyoid
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23
Q

Anterior Belly of Digastric Attachments

A
  • Digastric fossa

- Hyoid bone

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24
Q

Anterior Belly of Digastric Innervation

A
  • Nerve to myohyloid (CN V, mandibular division of trigeminal)
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25
Q

Posterior Belly of Digastric Attachments

A
  • Mastoid notch of temporal bone
  • Hyoid body
  • Greater horn of hyoid
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26
Q

Posterior Belly of Digastric Innervation

A
  • Facial nerve (CN VII)
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27
Q

Digastric Muscles Function

A
  • Depress mandible
  • Elevate hyoid
  • Joined by intermediate tendon
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28
Q

Infrahyoid Muscles (TOSS)

A
  • Thylohyoid
  • Omohyoid
  • Sternohyoid
  • Sternothyroid
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29
Q

Infrahyoid Muscles Innervation (all except thyrohyoid)

A
  • Ansa cervicalis
30
Q

Infrahyoid Muscles Function

A
  • Depress the hyoid and larynx
31
Q

Sternohyoid Attachments

A
  • Manubrium/medial end of clavicle

- Hyoid body

32
Q

Omohyoid Attachments

A
  • Superior border of scapula
  • Hyoid body
  • 2 bellies connected by an intermediate tendon
33
Q

Sternothyroid Attachments

A
  • Manubrium

- Oblique line of thyroid cartilage

34
Q

Thyrohyoid Attachments

A
  • Oblique line of thyroid cartilage
  • Inferior border of hyoid
  • Greater horn of hyoid
35
Q

Thyrohyoid Innervation

A
  • C1 branches traveling with hypoglossal nerve
36
Q

Submental Triangle Boundaries

A
  • I: body of hyoid
  • L: anterior bellies of digastric muscle
  • Apex: mandibular symphysis
  • Floor: mylohyoid muscles
37
Q

Submandibular Triangle Boundaries

A
  • S: inferior border of mandible
  • A: anterior belly of digastric
  • P: posterior belly of digastric
  • F: mylohyoid, hypoglossus
38
Q

Muscular Triangle Boundaries

A
  • P/I: anterior border of SCM
  • P/S: superior belly of omohyoid
  • M: midline of neck (hyoid bone to jugular notch)
39
Q

Carotid Triangle Boundaries

A
  • I/M: superior belly of omohyoid
  • S: posterior belly of digastric
  • P: anterior border of SCM
40
Q

Tributaries of IJV

A
  • Sigmoid sinus
  • Inferior potrosal sinus
  • Common facial vein
  • Superior and middle thyroid vein
41
Q

Hyoid Bone Vertebral Level

A
  • C3
42
Q

Thyroid Cartilage Vertebral Level

A
  • C4-6
43
Q

Cricoid Cartilage Vertebral Level

A
  • C6
44
Q

Thyroid Gland Vertebral Level

A
  • C5-T1
45
Q

Anterior Scalene Attachments

A
  • TP of C3-6

- 1st rib, anterior to subclavian artery groove

46
Q

Middle Scalene Atachments

A
  • TP of C2-7

- 1st rib, posterior to subclavian groove

47
Q

Posterior Scalene Attachments

A
  • TP of C4-6

- 2nd rib

48
Q

Scalenus Minimus Attachments

A
  • TP of C7

- 1st rib or suprapleural membrane

49
Q

Pectoralis Major Proximal Attachment

A
  • Medial 1/3 of clavicle
  • Anterior sternum
  • Upper 6 costal cartilages
  • Aponeurosis of external oblique
50
Q

Pectoralis Major Distal Attachment

A
  • Lateral lip of intertubervular sulcus
51
Q

Pectoralis Major Innervation

A
  • Lateral pectoral nerve (C5-7)

- Medial pectoral nerve (C8-T1)

52
Q

Pectoralis Major Function

A
  • Adduction
  • Medial rotation
  • Flexion
53
Q

Pectoralis Minor Proximal Attachment

A
  • Ribs 3-5
54
Q

Pectoralis Minor Distal Attachment

A
  • Coracoid process
55
Q

Pectoralis Minor Innervation

A
  • Medial pectoral nerve (C8-T1)
56
Q

Pectoralis Minor Function

A
  • Stabilize scapula
  • Pulls against thoracic wall
  • Accessory muscle of innervation
57
Q

Subclavius Proximal Attachment

A
  • 1st rib/costal cartilage junction
58
Q

Subclavius Distal Attachment

A
  • Inferior and middle 1/3 of clavicle
59
Q

Subclavius Innervation

A
  • Nerve to subclavius (C5)
60
Q

Subclavius Function

A
  • Stabilize SC joint

- Depress clavicle

61
Q

Levator Scapulae Proximal Attachment

A
  • Posterior tubercles of C1-4 TPs
62
Q

Levator Scapulae Distal Attachment

A
  • Medial border of scapula (above scapular spine base)
63
Q

Levator Scapulae Innervation

A
  • Dorsal scapular nerve (C4,5) motor

- C3,4 proprioception

64
Q

Levator Scapulae Funtcion

A
  • Elevates and rotates scapula

- Glenoid fossa rotates inferiorly

65
Q

Rhomboid Minor Proximal Attachment

A
  • Nuchal ligament

- C7 and T1 SPs

66
Q

Rhomboid Major Proximal Attachment

A
  • T2-5 SPs
67
Q

Rhomboid Minor Distal Attachment

A
  • Base of scapular spine
68
Q

Rhomboid Major Distal Attachment

A
  • Spine to inferior angle of scapula
69
Q

Rhomboids Innervation

A
  • Dorsal scapular nerve (C4,5)

- C3,4 proprioception

70
Q

Rhomboids Function

A
  • Retract and rotate scapula

- Fix scapula against thoracic wall

Gross Anatomy (50 decks)

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