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DPT 652 > Shoulder O/I/A/N > Flashcards

Shoulder O/I/A/N Flashcards

1
Q

Deltoid

A

O: later 1/3 of clavicle, scapular spine, and acromion
I: Deltoid tuberosity
A: All fibers - abduct GHJ, Anterior fibers - flex, medially rotate, and horizontally adduct GHJ, Posterior fibers: extend, laterally rotate, and horizontally abduct GHJ
N: Axillary nerve, C5, C6

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2
Q

Trapezius

A

O: external occipital protuberance, medial portion of superior nuchal line of occiput, ligamentum nuchae, and spinous processes C7-T12
I: lateral 1/3 of clavicle, spine of scapula, and acromion
A: Bilateral upper fibers extend the head/neck, unilateral upper fibers laterally flex, rotate, and elevate, middle fibers adduct and stabilize the STJ, lower fibers depress the STJ, all fibers together, upwardly rotate the scapula
N: spinal portion of accessory nerve (cranial nerve 11) and ventral ramus C2,3,4

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3
Q

Latissimus Dorsi

A

O: inferior angle of scapula, spinous process of last 6 thoracic vertebrae, last three or four ribs, thoracolumbar aponeurosis and posterior iliac crest
I: Intertubercular groove of the humerus
A: Extend, adduct, and medially rotate the GHJ
N: Thoracodorsal C6,7,8

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4
Q

Teres major

A

O: inferior angle and lower 1/3 of lateral border of scapula
I: crest of the lesser tubercle of the tuberus
A: extend, adduct, medially rotate GHJ
N: lower subscapular C5,6,7

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5
Q

supraspinatus

A

O: supraspinous fossa of scapula
I: superior facet of greater tubercle of humerus
A: abduction and stabilization of GHJ
N: suprascapular C4,5,6

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6
Q

Infraspinatus

A

O: infraspinous fossa of scapula
I: middle facet on greater tubercle of humerus
A: external rotation, adduction, and stabilize the GHJ
N: Suprascapular C4,5,6

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7
Q

Teres Minor

A

O: Upper 2/3 of later border of scapula
I: Inferior facet of the greater tubercle of humerus
A: External rotation, adduction, and stabilization of GHJ
N: Axillary C5,6

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8
Q

Subscapularis

A

O: subscapular fossa of scapula
I: lesser tubercle of the humerus
A: internal rotation and stabilization of GHJ
N: Upper and lower subscapular C5,6,7

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9
Q

Rhomboid Major

A

O: Spinous processes of T-2 to T-5
I: medial border of scapula
A: Retract, elevate, and downwardly rotate scapula
N: Dorsal scapular C4,5

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10
Q

Rhomboid Minor

A

O: Spinous processes C-7 to T-1
I: upper portion of medial border of the scapula, across from spine of scapula
A: retract, elevate, and downwardly rotate STJ
N: Dorsal scapular C4,5

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11
Q

Levator Scapula

A

O: transverse processes of C1-4
I: medial border of scapula
A: unilaterally - elevates, downward rotates, laterally flexes, and rotates the head and neck, Bilaterally - extends the head and neck
N: Cervical 3,4 and dorsal scapular C4,5

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12
Q

Serratus Anterior

A

O: external surfaces of upper 8-9 ribs
I: Anterior surface of medial border of scapula
A: Protract, upwardly rotate, depress, and stabilizes the scapula at STJ
N: long thoracic C5,6,7,8

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13
Q

Pectoralis Major

A

O: Medial 1/2 of clavicle, sternum, and cartilage of 1-6 ribs
I: Crest of greater tubercle of humerus
A: all fibers - adduct and internally rotate GHJ, assist in thorax elevation, upper fibers - flex and horizontally adduct GHJ, lower fibers - extend GHJ
N: Upper fibers - lateral pectoral C5,6,7 Lower fibers - lateral and medial pectoral C6,7,8,T1

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14
Q

Pectoralis Minor

A

O: ribs 3,4,5
I: medial surface of coracoid process of scapula
A: depress, protract, and downwardly rotate scapula, elevates thorax
N: medial pectoral, w/ fibers from a communicating branch of lateral pectoral C6, 7, 8, T1

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15
Q

Subclavius

A

O: first rib and cartilage
I: inferior surface of middle one-third of clavicle
A: depress, elevate, and stabilize the SCJ
N: subclavian C5,6

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16
Q

Biceps Brachii

A

O: short head - coracoid process of scapula, long head - supraglenoid tubercle of scapula
I: tuberosity of the radius and aponeurosis of the biceps brachii
A: humeroulnar flexion, radioulnar supination, glenohumeral flexion
N: musculocutaneous C5,6

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17
Q

`Triceps Brachii

A

O: long head - infraglenoid tubercle of the scapula, lateral head - posterior surface of proximal 1/2 of humerus, medial head - posterior surface of distal 1/2 of the humerus
I: Olecranon process of ulna
A: All heads - extend the HUJ, long head - extends and adducts GHJ
N: radial C6,7,8 T1

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18
Q

Coracobrachialis

A

O: coracoid process of scapula
I: medial surface of mid-humeral shaft
A: flexion and adduction at GHJ
N:musculocutaneous C6,7

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19
Q

coracoclavicular ligament

A

composed of two smaller ligaments: trapezoid and conoid, both stretch from the coracoid process of the scapula to the inferior surface of the clavicle

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20
Q

Costoclavicular ligament

A

attaches to sternal end of clavicle on inferior side and to the first rib and cartilage where it articulates w/ the manubrium

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21
Q

Clavipectoral fascia (suspensory ligament of axilla)

A
  • Connects to clavicle to axillary fascia (floor of aarmpit)
  • Splits to enclose pectoralis minor and subclavius
  • Medial to pectoralis minor, pierced by: cephalic vein, thoracoacromial artery and lateral pectoral nerve
22
Q

Suprascapular foramen boundaries

A

Suprascapular notch and suprascapular ligament

23
Q

Suprascapular foramen innervation

A

suprascapular nerve

24
Q

suprascapular foramen vascularization

A

suprascapular artery

25
Q

Quadrangular space boundaries

A

capsule of GHJ, surgical neck of humerus, long head of triceps, superior border of teres major

26
Q

quadrangular space vascularization

A

posterior humeral circumflex artery

27
Q

quadrangular space innervation

A

axillary nerve

28
Q

triangular space boundaries

A

superior border or teres major, inferior border of teres minor, long head of triceps

29
Q

triangular space vascularization

A

circumflex scapular artery

30
Q

triangular interval boundaries

A

lateral border of long head of triceps, shaft of humerus, inferior margin of teres major

31
Q

triangular interval vascularization

A

profunda brachii artery

32
Q

triangular interval innervation

A

radial nerve

33
Q

acromioclavicular ligament

A

attaches to the acromion of the scapula to the lateral/acromial end of the clavicle

34
Q

trapezoid ligament

A

attaches to the superior surface of the coracoid process and extends laterally to the trapezoid line on the inferior surface of the clavicle

35
Q

conoid ligament

A

attaches to the conoid tubercle on the inferior surface of the clavicle and the root of the coracoid process of the scapula

36
Q

interclavicular ligament

A

attaches to the sternal ends of the clavicles and to the superior border of the manubrium including the jugular notch

37
Q

anterior sternoclavicular ligament

A

attaches to the sternal end of the clavicle anteriorly and the manubrium of he sternum anteriorly

38
Q

posterior sternoclavicular ligament

A

attaches to the posterior sternal end of the clavicle and the posterior manubrium of the sternum

39
Q

transverse humeral ligament

A

attaches to greater and lesser tubercles of the humerus and form a bridge over intertubercular groove

40
Q

glenohumeral ligaments

A

attach to the glenoid labrum and the anatomical neck of the humerus

41
Q

coracohumeral ligament

A

attaches to the base of the coracoid process of the scapula and the anterior region of the greater tubercle of the humerus

42
Q

acromioclavicular ligament function

A

strengthen the ACJ superiorly

43
Q

coracoclavicular ligament function

A

comprised of conoid and trapezoid ligaments; function to stabilize the SCJ and form bridge btw scapula and clavicle

44
Q

interclavicular ligament function

A

strengthens sternoclavicular joint capsule superiorly

45
Q

anterior and posterior sternoclavicular ligaments function

A

strengthen SCJ anteriorly and posteriorly, respectively

46
Q

costoclavicular ligament

A

anchors the inferior sternal end of the clavicle to the first rib and its costal cartilages; limits elevation of pectoral girdle

47
Q

coracoacromial ligament function

A

forms the coracoacromial arch across the top of the shoulder and protects RTC tendons and subacromial bursa from direct trauma from the acromion; resists superior displacement of the humeral head

48
Q

transverse humeral ligament function

A

holds the biceps brachii tendon in place during GHJ mvmt

49
Q

glenohumeral ligaments

A

reinforce GHJ capsule anteriorly

50
Q

coracohumeral ligament

A

strengthens GHJ capsule superiorly

DPT 652 (3 decks)

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