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HBO 2 > Muscles of Shoulder Girdle > Flashcards

Muscles of Shoulder Girdle Flashcards

1
Q

Muscles of the Axioappendicular

A

Pectoralis Major
Pectoralis Minor
Subclavius
Serratus Anterior

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2
Q

PA of Pectoralis Major

A

Clavicular Head: medial ½ of
clavicle; Sternocostal head:
anterior sternum, superior 6 costal
cartilages (ribs)

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3
Q

DA of Pectoralis Major

A

Lateral lip of the intertubercular groove

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4
Q

Nerve Supply Pec Major

A

Lateral and Medial Pectoral Nerves

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5
Q

Action of Pec Major

A

adducts/medially rotates humerus

Clavicular head- flexes humerus

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6
Q

PA Pec Mino

A

3rd-5th ribs near their costal cartilages

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7
Q

DA Pec Minor

A

Coracoid Process of Scapula

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8
Q

Nerve Supply of Pec Minor

A

Medial Pectoral Nerve

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9
Q

Action of Pec Minor

A

Stabilises scapula by drawing it inferiorly and anteriorly on thoracic cage

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10
Q

PA Subclavius

A

Junction of 1st rib and costal cartilage

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11
Q

DA Subclavius

A

Inferior surface of middle third of clavicle

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12
Q

Action Subclavius

A

Anchors and depress clavicle

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13
Q

PA Serratus Anterior

A

External surface of lateral part of ribs 1-8

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14
Q

DA Serratus Anterior

A

Anterior surface of medial border of scapula

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15
Q

Nerve Supply of Serratus Anterior

A

Long Thoracic nerve

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16
Q

Action of Serratus Anterior

A

Protracts scapula and holds it on thoracic wall, rotates scapula (glenoid fossa superiorly)

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17
Q

Posterior Axioappendicular Muscles

A

Superficial- Trapezius, Latmissimus Dorsi

Deep- Levator Scapulae, Rhomboid Major, Rhomboid Minor

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18
Q

Trapezius

A

Superior (descending)
Middle(Transerve)
Inferior(ascending)

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19
Q

PA Trapezius

A

Superior nuchal line, external occiptual protuberance nuchal ligament, Spinal Process of c7-t12 vertebrae

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20
Q

DA Traps

A

Lateral 1/3rd clavicle, acromion and spine of scapula

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21
Q

NERVE Supply of Trapzius

A 
Accessory Nerve (CN XI) motor
(3,4 Spinal Nerves (pain and propioception)
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22
Q

Action of Trapezius

A

Superior: elevates scapula
Middle: retracts scapula
Inferior: Depress scapula
SUP+INF= rotate glenoid fossa superiorly

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23
Q

Nerve Supply Subclavius

A

Subclavian Nerve

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24
Q

PA Latissimus Dorsi

A

SPs of inferior 6 thoracic vert, thoracolumbar fascia, iliac crest, inferior 3-4 ribs

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25
DA Latissimus Dorsi
Floor of the intertubercular groove
26
Nerve Supply Latissimus Dorsi
Thoracodorsal nerve
27
Action Latissimus Dorsi
Extends, adducts and medially rotates the humerus
28
PA Levator Scapulae
TPs C1-4 vertebrae
29
DA Levator Scapulae
Medial border of the scapula superior to the spine of the scapula
30
Nerve Supply Levator Scapulae
Dorsal scapular nerve & Cervical nerves C3,4
31
Action of Levator Scapulae
Elevates scapula and inferiorly rotates glenoid fossa
32
PA Rhomboid Minor
Minor: nuchal lig, SPs of C7-T1;
33
DA Rhomboid Minor
Minor: medial end of scapula spine
34
Nerve Supply of Rhomboid
Dorsal scapular nerve
35
Action of Rhomboids
Retract scapula, inferiorly rotate glenoid fossa, fix scapula against thoracic wall
36
PA Rhomboid Major
; Major: SPs of T2-T5
37
DA Rhomboid Major
Medial border of scapula, below spine
38
Scapulohumeral Muscles
Deltoids Teres Major Rotator Cuff: Supraspinatus, Teres Minor, Infraspinatus, Subscapularis
39
PA Deltoid
Lateral 1/3rd of clavicle, acromion and spine of scapula
40
DA Deltoid
Deltoid tuberosity of humerus
41
Nerve Supply Deltoid
Axillary Nerve
42
Action Deltoid
Anterior: flexes/medially rotates Middle: Abducts Posterior: extends and laterally rotates arm
43
PA Teres Major
Posterior surface of inferior angle of scapula
44
DA Teres Major
Medial Lip of the Intertubercular groove
45
Nerve Supply Teres Major
Lower Subscapular Nerve
46
Rotator Cuff
Supraspinatus Infraspinatus Teres Minor Subscapularis
47
PA Suprapinatus
Supraspinous Fossa of Scapula
48
DA Supeaspinatus
Superior facet of greater tubercle
49
NS Supraspinatus
Suprascapular Nerve
50
Action of Supraspinatus
Initiates and assists deltoid in abduction of arm | Stabilises GH joint
51
Relationship of Supraspinatus with GH joint and subacromial bursa
Supraspinatus is separated from coracromial arch by subacromial bursa
52
PA Infraspinatus
Infraspinous Foss
53
DA Infraspinatus
Middle facet of the tubercule of the humerus
54
Nerve Supply Infraspinatus
Suprascapular
55
Action of Infraspinatus
Laterally rotates humerus | Stabilises GH joint
56
PA Teres Minor
Middle part of the lateral border of the scapula
57
DA Teres Minor
Inferior facet of the greater tubercle of the humerus
58
Nerve Supply of Teres Minor
Axillary Nerve
59
Action of Teres Minor
Laterally rotates humerus | Stabilises GH joint
60
PA Subscapularis
Subscapular Fossa
61
DA Subscapularis
Lesser Tubercle of the humerus
62
Nerve Supply of Subscapularis
Upper and lower subscapular nerve
63
Action of the Subscapularis
Medially rotates arm | Stabilising GH joint
64
Action of Teres Major
Medial rotate my abs Adduct
65
Action of Teres major
Adduct and medially rotate

HBO 2 (18 decks)

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