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PTA Musculoskeletal > Mostly Shoulder Muscle O I A N > Flashcards

Mostly Shoulder Muscle O I A N Flashcards

1
Q

Anterior Deltoid

A

O: Lateral 1/3 of clavicle
I: Deltoid Tuberosity
A: Flexion, Medial Rotation, Horizontal Adduction
N: Axillary

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2
Q

Middle Deltoid

A

O: Acromion
I: Deltoid Tuberosity
A: Abduction
N: Axillary

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3
Q

Posterior Deltoid

A

O: Scapular Spine
I: Deltoid Tuberosity
A: Extension, Lateral Rotation, Horizontal Abduction
N: Axillary

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4
Q

Trapezius, O I N

A

O: External Occipital Protuberance, Medial portion of Superior Nuchal Line of Occiput, Ligamentum Nuchae, Spinous Processes of C7-T-12
I: Lateral 1/3 of clavicle, acromion, and scapular spine

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5
Q

Trapezius: Upper, A

A 
Bilaterally: Extend head and neck
Unilaterally: Laterally flex head and neck to same side
Rotate head and neck to opposite side
Elevate scapula
Upwardly rotate scapula
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6
Q

Trapezius: Middle, A

A

Adduct scapula

Stabilize scapula

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7
Q

Trapezius: Lower, A

A

Depress scapula

Upwardly rotate scapula

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8
Q

Latissimus Dorsi

A

O: Spinous process of T6-T12, last 3-4 ribs, thoracolumbar aponeurosis, posterior iliac crest
I: Lesser Tubercle
A: Extension, Adduction, Medial Rotation
N: Thoracodorsal

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9
Q

Teres Major - “Lat’s little helper”

A

O: Inferior angle and lower half of lateral scapular border
I: Lesser Tubercle
A: Extension, Adduction, Medial Rotation
N: Lower subscapular

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10
Q

Supraspinatus

A

O: Supraspinous fossa of scapula
I: Greater tubercle
A: Abduction, stabilization
N: Suprascapular

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11
Q

Infraspinatus

A

O: Infraspinous fossa
I: Greater tubercle
A: Lateral rotation, Adduction, Extension, Horizontal Abduction, stabilization of humeral head
N: Suprascapular

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12
Q

Teres Minor

A

O: Lateral border of Scapula
I: Greater tubercle
A: Lateral rotation, Adduction, Extension, Horizontal Abduction, stabilization
N: Axillary

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13
Q

Subscapularis

A

O: Subscapular fossa
I: Lesser tubercle
A: Medial Rotation, stabilization
N: Upper and Lower Subscapular

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14
Q

Rhomboid Major

A

O: Spinous processes of T2-T5
I: Medial border of scapula
A: Adduct scapula, Elevate scapula, Downward rotate scapula
N: Dorsal scapular

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15
Q

Rhomboid Minor

A

O: Spinous processes of C7-T1
I: Medial border of scapula
A: Adduct, elevate, downward rotate scapula
N: Dorsal scapular

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16
Q

Levator Scapula

A

O: Transverse processes of C1-C4
I: Medial border and Superior angle of scapula
A: Unilaterally: Elevate Scapula, downwardly rotate scapula, Laterally flex head/neck, Rotate head/neck to same side
Bilaterally: Extend head and neck
N: Dorsal scapular and cervical nerves

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17
Q

Serratus Anterior

A

O: Ribs 1-8 or 9
I: Anterior surface of medial border of scapula
A: With origin fixed - Abduct scapula, depress scapula, hold medial border of scapula against rib cage
With scapula fixed - May act in forced inhalation
N: Long Thoracic

18
Q

Pectoralis Major

A

O: Medial half of clavicle, sternum , and cartilage of 1-6 ribs
I: Greater tubercle
N: Medial and Lateral Pectoral

19
Q

Pec Major: All fibers, A

A

A: Adduction, medial rotation, assist in forced inhalation (if arm is fixed)

20
Q

Pec Major: Upper Fibers, A

A

A: Flexion, Horizontal adduction

21
Q

Pec Major: Lower Fibers, A

A

A: Extension

22
Q

Pectoralis Minor

A

O: 3-5 ribs
I: Coracoid process
A: Depress scapula, Abduct scapula, Tilt scapula anterior
N: Medial Pectoral

23
Q

Subclavius

A

O: First rib
I: Inferior, Lateral aspect of clavicle
A: Draw clavicle inferior and anterior, Elevate first rib, Stabilize sternoclavicular joint
N: Subclavian

24
Q

Biceps Brachii

A

O: Short head - Coracoid process
Long head: Supraglenoid tubercle
I: Radial tuberosity and aponeurosis of biceps brachii
A: Elbow flexion, Supination, Shoulder flexion
N: Musculocutaneous

25
Q

Triceps Brachii

A

O: Longhead - Infraglenoid tubercle
Lateral Head - Posterior surface of proximal humerus
Medial head - Posterior surface of distal humerus
I: Olecranon process
A: Elbow extension
Long head - Shoulder extension, shoulder Adduction
N: Radial

26
Q

Coracobrachialis

A

O: Coracoid process
I: Medial surface of mid-humeral shaft
A: Shoulder Flexion, Adduction
N: Musculocutaneous

27
Q

Short N Sweet: Scapular Elevation

A
  • Upper Trap

- Levator Scap

28
Q

Short N Sweet: Scapular Depression

A
  • Lat Dorsi
  • Pec Major
  • Pec Minor
  • Lower Trap
29
Q

Short N Sweet: Scapular Protraction

A
  • Serratus Anterior

- Pec Minor

30
Q

Short N Sweet: Scapular Retraction

A
  • Middle Trap

- Rhomboids

31
Q

Short N Sweet: Scapular Upward Rotation

A
  • Upper Trap
  • Lower Trap
  • Serratus Ant
32
Q

Short N Sweet: Scapular Downward Rotation

A
  • Rhomboids
  • Levator Scap
  • Pec Minor
33
Q

Short N Sweet: Shoulder Flexion

A
  • Ant Delt
  • Coracobrachialis
  • Pec Major
  • Biceps brachii
34
Q

Short N Sweet: Shoulder Extension

A
  • Lat Dorsi
  • Post Delt
  • Teres Major
  • Triceps Brachii, long head
35
Q

Short N Sweet: Shoulder Abduction

A
  • Middle Delt

- Supraspinatus

36
Q

Short N Sweet: Shoulder Adduction

A
  • Pec Major
  • Lat Dorsi
  • Teres Major
37
Q

Short N Sweet: Shoulder Horizontal Abduction

A
  • Post Delt
  • Infraspinatus
  • Teres Minor
38
Q

Short N Sweet: Shoulder Horizontal Adduction

A
  • Anterior Delt

- Pec Major

39
Q

Short N Sweet: Shoulder Lateral Rotation

A
  • Teres Minor
  • Infraspinatus
  • Posterior Delt
40
Q

Short N Sweet: Shoulder Medial Rotation

A
  • Subscap
  • Teres Major
  • Pec Major
  • Lat Dorsi
  • Ant Delt

PTA Musculoskeletal (28 decks)

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