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Fundamentals of Anatomy > Arm OIA > Flashcards

Arm OIA Flashcards

(60 cards)

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1
Q

Trapezius Origin

A

Occipital Bone (medial third of superior nuchal line), EOP, SPs C7-T12, Ligament. Nuchae

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2
Q

Trapezius Insertion

A

Lateral third of clavicle, acromion, spine of scapula

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3
Q

Trapezius Action

A

Upper: scapular elevation, ipsilateral side flexion of the cervical spine, contralateral rotation of the cervical spine, cervical spine extension
Middle: scapular retraction
Lower: scapular depression
Upper & Lower: upward rotation

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4
Q

Rhomboid Major Origin

A

SPs of T2-T5

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5
Q

Rhomboid Major Insertion

A

Medial border of scapula from just inferior to scapular spine to inferior angle

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6
Q

Rhomboid Major Action

A

Retracts and downward rotation of scapula, slightly elevates the scapula

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7
Q

Rhomboid Minor Orign

A

SPs of C7-T1

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8
Q

Rhomboid Minor Insertion

A

Superior part of medial border of scapula

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9
Q

Rhomboid Minor Action

A

Retracts and downwardly rotates the scapula, slightly elevates the scapula

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10
Q

Levator Scapula Origin

A

posterior tubercle of TPs C1-4

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11
Q

Levator Scapula Insertion

A

superior part of medial border of scapula

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12
Q

Levator Scapula Action

A

Elevates the scapula, downward rotation of scapula, ipsilateral side neck flexion, ipsilateral cervical rotation

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13
Q

Latissimus Dorsi Origin

A

SPs T6-T12, thoraco-lumbar fascia, iliac crest, inferior 3-4 ribs, inferior angle

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14
Q

Latissimus Dorsi Insertion

A

Floor of intertubercular sulcus of humerus

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15
Q

Latissimus Dorsi Action

A

Shoulder IR, ADD, EXT, HABD, scapular retraction, depression, downward rotation

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16
Q

Serratus Anterior Origin

A

External lateral margins of ribs 1-8 (or 1-9 or 1-10)

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17
Q

Serratus Anterior Insertion

A

Anterior surface of medial border of scapula

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18
Q

Serratus Anterior Action

A

scapular protraction, scapular depression, upward rotation of scapula, active during forced inspiration

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19
Q

Subclavius Origin

A

1st rib (junction between rib and its cartilage)

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20
Q

Subclavius Insertion

A

inferior surface of medial 3rd of clavicle at the subclavian groove

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21
Q

Subclavius Action

A

depresses clavicle, depresses scapular, protracts scapula

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22
Q

Pectoralis Minor Origin

A

Ribs 3-5 near costal cartilages

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23
Q

Pectoralis Minor Insertion

A

Coracoid process of scapula

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24
Q

Pectoralis Minor Action

A

raises ribs 3-5 during forced inspiration when scapula is fixed, protracts scapula, downward rotation of scapula, depresses scapula, stabilizes scapula

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25
Pectoralis Major Origin
Clavicular Head: inferior medial half of clavicle Sternocostal Head: anterior surface of sternum(body), 2-6 (or 1-6) costal cartilages
26
Pectoralis Major Insertion
Crest of intertubercular sulcus (lateral lip of intertubercular groove) of humerus
27
Pectoralis Major Action
Shoulder IR, ADD, HADD Rotates scapula downward, protracts scapula, depresses scapula, when arm is flexed raises ribs during forced inspiration Clavicular: FLX of shoulder from extended position Sternocostal: EXT of shoulder from flexed position
28
Deltoid Origin
Lateral third of clavicle, acromion, spine of scapula
29
Deltoid Insertion
Deltoid tuberosity of humerus midway down on the lateral aspect of the humerus
30
Deltoid Action
Anterior: FLX, HADD, IR, ABD Middle: ABD (first 15 degrees) Posterior: EXT, HABD, ER, ABD
31
Supraspinatus Origin
Supraspinous Fossa of scapula
32
Supraspinous Insertion
Superior Facet of greater tubercle of humerus
33
Supraspinous Action
ABD
34
Infraspinatus Origin
Infraspinous Fossa of scapula
35
Infraspinatus Insertion
Middle Facet of greater tubercle of humerus
36
Infraspinatus Action
ER, stabilizes head of humerus
37
Teres Minor Origin
Middle part of lateral border of scapula
38
Teres Minor Insertion
Inferior Facet of greater tubercle of humerus
39
Teres Minor Action
ER, minor EXT, ADD, stabilizes head of humerus
40
Teres Major Origin
Posterior surface of inferior angle of scapula
41
Teres Major Insertion
Medial lip of intertubercular sulcus of humerus
42
Teres Major Action
IR, ADD, EXT
43
Subscapularis Origin
Subscapular Fossa of scapula
44
Subscapularis Insertion
Lesser tubercle of humerus
45
Subscapularis Action
stabilizes the head of humerus, shoulder IR, ADD of the shoulder
46
Coracobrachialis Origin
tip of coracoid process
47
Coracobrachialis Insertion
middle third of medial surface of humerus
48
Coracobrachialis Action
FLX, ADD of the shoulder, resists dislocation of the shoulder
49
Biceps Brachii Origin
Long Head: Supraglenoid Tubercle of scapula Short Head: inferior lateral aspect of the coracoid process of the scapula
50
Biceps Brachii Insertion
radial tuberosity and fascia of the forearm
51
Biceps Brachii Action
Supination of forearm, FLX with in supinated position, barely operates when forearm is pronated, weak shoulder FLX
52
Brachialis Origin
distal half of anterior surface of humerus
53
Brachialis Insertion
coronoid process and ulnar tuberosity
54
Brachialis Action
Main FLX of forearm (in all positions)
55
Triceps Origin
Long Head: infraglenoid fossa of scapula Lateral Head: posterior humerus, superior to radial groove Medial Head: posterior humerus, inferior to radial groove
56
Triceps Insertion
Proximal end of olecranon of ulna and fascia of forearm
57
Triceps Action
Main EXT of the forearm, helps EXT and ADD shoulder
58
Anconeus Origin
posterior surface of lateral epicondyle of humerus
59
Anconeus Insertion
lateral olecranon and posterior superior ulna
60
Anconeus Action
helps to EXT elbow

Fundamentals of Anatomy (17 decks)

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