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Upper Extremity > Back, Shoulder, Scapula > Flashcards

Back, Shoulder, Scapula Flashcards

1
Q

Trapezius

Origin

A

EOP, Medial 1/3 Superior Nuchal Line, Nuchal L., SP C7-T12

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2
Q

Trapezius

Insertion

A

Lateral 1/3 Clavicle, Spine of Scapula, Acromion Process

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3
Q

Trapezius

Innervation

A

Spinal Accessory N. (CN XI) (MOTOR)

Ventral Rami C3-C4 (SENSORY)

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4
Q

Trapezius

Action

A

Upper: Scapular Elevation
Middle: Scapular Retraction
Lower: Scapular Depression
Closed Chain: Ipsilateral lateral flexion, head and neck extension

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5
Q

Latissimus Dorsi

Origin

A

Thoracolumbar Fascia, SP T7-L5, Sacrum, Iliac Crest, and Ribs 9-12

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6
Q

Latissimus Dorsi

Insertion

A

Floor of Intertubercular Groove of Humerus

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7
Q

Latissimus Dorsi

Innervation

A

Thoracodorsal N. (C6-C8)

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8
Q

Latissimus Dorsi

Action

A

Humerus: adduction, extension, medial rotation

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9
Q

Levator Scapulae

Origin

A

Posterior Tubercles TP C1-C4

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10
Q

Levator Scapulae

Insertion

A

Superior angle of scapula

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11
Q

Levator Scapulae

Innervation

A

Dorsal Scapular N. (C5)

Ventral Rami C3-C4

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12
Q

Levator Scapulae

Action

A

Scapula: elevation, downward rotation

Closed Chain: Ipsilateral lateral flexion of neck

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13
Q

Rhomboid Minor

Origin

A

SP C7-T1

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14
Q

Rhomboid Minor

Insertion

A

Medial border of the scapula at the level of the scapular spine

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15
Q

Rhomboid Minor

Innervation

A

Dorsal Scapular N. (C5)

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16
Q

Rhomboid Minor

Action

A

Scapula: Retraction, downward rotation, helps fix scapula to thoracic wall

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17
Q

Rhomboid Major

Origin

A

SP T2-T5

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18
Q

Rhomboid Major

Insertion

A

Medial border of the scapula inferior to the scapular spine

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19
Q

Rhomboid Major

Innervation

A

Dorsal Scapular N. (C5)

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20
Q

Rhomboid Major

Action

A

Scapula: Retraction downward rotation, helps fix scapula to thoracic wall

21
Q

Supraspinatus

Origin

A

Supraspinous Fossa

22
Q

Supraspinatus

Insertion

A

Superior 1/3 greater tubercle of humerus

23
Q

Supraspinatus

Innervation

A

Suprascapular N. (C5-C6)

24
Q

Supraspinatus

Action

A

Humerus: initiates abduction

25
Infraspinatus Origin
Infraspinous Fossa
26
Infraspinatus Insertion
Middle 1/3 greater tubercle of humerus
27
Infraspinatus Innervation
Suprascapular N. (C5-C6)
28
Infraspinatus Action
Humerus: Lateral Rotation
29
Teres Minor Origin
Superior 1/2 Lateral border of scapula
30
Teres Minor Insertion
Inferior 1/3 greater tubercle of humerus
31
Teres Minor Innervation
Axillary N. (C5-C6)
32
Teres Minor Action
Humerus: Lateral rotation, weak adduction
33
Teres Major Origin
Inferior angle of scapula, inferior 1/2 lateral border of scapula
34
Teres Major Insertion
Medal lip intertubercular groove of humerus
35
Teres Major Innervation
Lower Subscapular N. (C5-C6)
36
Teres Major Action
Humerus: Medial rotation, adduction, weak extension
37
Subscapularis Origin
Subscapular Fossa
38
Subscapularis Insertion
Lesser tubercle of humerus
39
Subscapularis Innervation
Upper Subscapular N. (C5-C6) | Lower Subscapular N. (C5-C6)
40
Subscapularis Action
Humerus: Medial Rotation
41
Serratus Anterior Origin
Lateral 1st-9th ribs
42
Serratus Anterior Insertion
Anterior medial border of scapula
43
Serratus Anterior Innervation
Long Thoracic N. (C5-C7)
44
Serratus Anterior Action
Scapula: protraction, upward rotation, holds scapula close to thoracic wall
45
Deltoid Origin
Lateral 1/3 clavicle, acromion process, scapular spine
46
Deltoid Insertion
Deltoid tuberosity of humerus
47
Deltoid Innervation
Axillary N. (C5-C6)
48
Deltoid Action
Humerus: abduction, flexion, extension

Upper Extremity (4 decks)

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