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Adam KCU Anatomy I Exam 2 > Muscles of the Shoulder Complex > Flashcards

Muscles of the Shoulder Complex Flashcards

(71 cards)

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1
Q

What elevates the scapula?

A

Levator Scapulae Rhomboids

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2
Q

What depresses the scapula?

A

Latisimus Dorsi

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3
Q

What abducts the scapula?

A

Serratus Anterior

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4
Q

What abducts the shoulder?

A

Middle Deltoid

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5
Q

What upwardly rotates the scapula?

A

Serratus Anterior Upper and Lower Trapezius

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6
Q

Downward Rotation of Scapula?

A

Rhomboids Levator Scapulae

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7
Q

What extends the shoulder?

A

Posterior Deltoid Latissimus Dorsi

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8
Q

What flexes the Shoulder?

A

Anterior Deltoid

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9
Q

What adducts the Scapula?

A

Middle Trapezius

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10
Q

What adducts the Shoulder?

A

Clavicular head of pec major Latissimus Dorsi

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11
Q

CN XI 3rd and 4th Cervical Nerves

A

Innervation of the Trapezius

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12
Q

Upper: External occipital protuberance Middle: Spinous processes of TV 1-6 Lower: Spinous Processes of TV 7-12

A

Proximal Attachment of Trapezius

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13
Q

Upper: Lateral third of clavicle Middle: Acromion and crest of scapular spine Lower: Tubercle of scapular spine

A

Distal Attachment of Trapezius

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14
Q

Dorsal Scapular Artery (3)

A

Blood Supply of Trapezius, Levator Scapulae, Rhomboids

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15
Q

Thoracodorsal Nerve (C6-8) L

A

Innervation of Latissimus Dorsi

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16
Q

Spines of TV 7-12 Lumbar and sacral vertebrae

Posterior iliac crest Ribs 9-12

A

Proximal Attachment of Lat Dorsi

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17
Q

Floor of intertubercular (Bicipital) groove

A

Distal Attachment of Lat

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18
Q

Extends, adducts and rotates the humerus

A

Action of Lat

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19
Q

Thoracodorsal artery

Branch of the subscapular artery

A

Blood Supply of Lat

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20
Q

Cervical Nerves C3-5 Dorsal Scapular Nerve C5

A

Innervation of Levator Scapulae

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21
Q

Transverse processes of CV 1-4

A

Proximal Attachment of Levator Scapulae

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22
Q

Medial border of scapula at level of and above the spine

A

Distal Attachment of Levator Scapulae

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23
Q
  • Elevates the scapula at the superior (medial) angle - Assists in the downward rotation of the scapula
A

Action of Levator Scapulae

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24
Q

Dorsal Scapular Nerve (C5) R

A

Innervation of Rhomboids

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25
Spines of TV 2-4
Proximal Attachment of Rhomboid Major
26
Spines of CV 7 and TV 1
Proximal Attachment of Rhomboid Minor
27
Medial border of scapula from level of the spine inferiorly to the inferior angle
Distal Attachment of Rhomboids
28
- Adducts scapula - Rotates glenoid fossa downward - Fixes scapula to thoracic wall
Action of Rhomboids
29
Junction of first rib and costal cartilage 1
Proximal Attachment of Subclavius
30
Inferior surface of middle third of clavicle
Distal Attachment of Subclavius
31
Anchors and depresses clavicle
Action of Subclavius
32
Nerve to subclavius (C5, 6)
Innervation of Subclavius
33
- Lateral and medial pectoral nerves
Innervation Pectoralis Major
34
- Anterior surface of the medial half of the clavicle - Anterior surface of the manubrium and body of the sternum - Costal cartilages 2-6 - Aponeurosis of the external oblique
Proximal Attachment of Pec Major
35
Lateral lip of the bicipital groove/crest of greater tubercle
Distal Attachment of Pec Major
36
- Adducts and medially rotates arm (humerus) - Flexes arm (clavicular head) - Extends arm (sternal head) from flexed position - Draws scapula anteriorly and inferiorly
Action of the Pec Major
37
Medial Pectoral Nerve (C8,T1)
Innervation of Pec Minor
38
Ribs 3-5 near costal cartilage
Proximal Attachment of Pec Minor
39
Coracoid process
Distal Attachment of Pec Minor
40
Draws scapula inferiorly and anteriorly against thoracic wall (stabilizes scapula)
Action of Pec Minor
41
Long thoracic nerve (C5-7)
Innervation of Serratus Anterior
42
External surface of lateral parts of ribs 1-8
Proximal Attachment of Serratus Anterior
43
Anterior surface of medial border of scapula
Distal attachment of Serratus Anterior
44
- Protracts Scapula - Fixes Scapula to Thoracic Wall - Rotates Scapula
Action of Serratus Anterior
45
Lateral thoracic artery
Blood Supply of Serratus Anterior
46
Axillary Nerve (2)
Innervation of Deltoid Innervation of Teres Minor
47
- Lateral 1/3 of clavicle - Acromion and spine of scapula
Proximal Attachment of Deltoid
48
Deltoid tuberosity of humerus
Distal Attachment of Deltoid
49
Flexes, medially rotates, abducts extends and laterally rotates humerus
Action of Deltoid
50
Thoracocromial artery
Blood Supply of Deltoid
51
Lower Subscapular nerve (C5, 6)
Innervation of Teres Major
52
Posterior surface of inferior angle of scapula
Proximal Attachment of Teres Major
53
Medial lip of bicipital groove of humerus
Distal Attachment of Teres Major
54
Adducts and medially rotates the humerus
Action of Teres Major
55
Circumflex scapular artery
Blood Supply of Teres Major, Teres Minor
56
Supraspinatus Infraspinatus Teres Minor Subscapularis
What are the 4 rotator cuff muscles?
57
Suprascapular Nerve (2)
Innervation of Supraspinatus Infraspinatus
58
Supraspinous fossa of scapula
Proximal Attachment of Supraspinatus
59
Superior facet of greater tubercle of humerus
Distal Attachment of Supraspinatus
60
- Works with deltoid in abduction of humerus - Acts with other RC muscles in stabilizing shoulder joint
Action of Supraspinatus
61
Suprascapular Artery (3)
Blood Supply of Supraspinatus, Infraspinatus, Subscapularis
62
Infraspinous Fossa of Scapula
Proximal Attachment of Infraspinatus
63
Middle facet of greater tubercle of humerus
Distal Attachment of Infraspinatus
64
- Laterally rotates humerus - Helps hold humeral head in place
Action of Infraspinatus
65
Middle part of lateral border of scapula
Proximal Attachment of Teres Minor
66
Inferior facet of greater tubercle of humerus
Distal Attachment of Teres Minor
67
- Laterally rotates humerus - Helps hold humeral head in place
Action of Teres Minor
68
Upper and Lower subscapular nerves (C5, 6, 7)
Innervation of Subscapularis
69
Subscapular fossa of scapula (anterior surface)
Proximal Attachment of Subscapularis
70
Lesser tubercle of humerus
Distal Attachment of Subscapularis
71
- Medially rotates and adducts humerus - Helps hold humeral head in place
Action of Subscapularis

Adam KCU Anatomy I Exam 2 (16 decks)

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