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Undeleted > Scapular & Pectoral Regions > Flashcards

Scapular & Pectoral Regions Flashcards

1
Q

Identify.

A

supraspinatus

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2
Q

Identify.

A

Subtendinous bursa

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2
Q

Subscapularis

origin

insertion

action

supply

A

origin = subscapular fossa

insertion = lesser tubercle of humerus

action = medially rotate humerus

supply = upper & lower subscapular n’s, subscapular a/v

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3
Q

Teres Minor

origin

insertion

action

supply

A

origin = lateral scapula

insertion = greater tubercle humerus

action = laterally rotate humerus

supply = axillary n & suprascapular/subscapular a/v

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3
Q

If this tendon wears away, the subacromial bursa can become continuous with the joint capsule & shoulder movement is painful, arm movement is limited.

A

Supraspinatus tendon

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4
Q

this artery is a continuation of subclavian artery

A

axillary

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4
Q

2 heads of pectoralis major?

A

clavicular & sternocostal

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5
Q

Borders of triangular interval?

A

Superior = Teres major

Medial = Long head triceps brachii

Lateral = Lateral head triceps brachii

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5
Q

Dorsal scapular nerve = ventral ramus of…

A

C5

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6
Q

between subscapularis muscle & joint capsule (is there so muscle doesn’t rub against fibrous membrane of the capsule)

A

subtendonous bursa

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6
Q

Identify 1-2.

A
  1. Teres Minor
  2. Teres Major
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6
Q

dorsal scapular artery is a branch off of…

A

subclavian a

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8
Q

this muscle is “lat’s little helper”

A

Teres Major

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9
Q

Rotator Cuff muscles

A

“SITS”

Supraspinatus

Infraspinatus

Teres Minor

Subscapularis

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9
Q

the subscapular artery comes off of the ____ and splits into __ & ___

A

axillary artery

thoracodorsal & circumflex scapular

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11
Q

Identify 1-8.

A
  1. Coronoid Tubercle
  2. Conoid Ligament
  3. Trapezoid Ligament
  4. Acromioclavicular ligament
  5. Acromion
  6. Coracoid process
  7. Glenoid Cavity
  8. Suprascapular notch
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12
Q

what 2 vessels provide collateral circulation to scapular region?

A

thyrocervical trunk & subscapular a

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13
Q

Identify 1-2.

A
  1. Teres Minor
  2. Teres Major
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14
Q

Identify.

A

infraspinatus

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15
Q

this nerve comes off of lateral cord of brachial plexus, runs above pec minor to enter pec major

A

lateral pectoral n

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16
Q

membranous sac containing synovial fluid inferior to acromion & deltoid but superior to supraspinatus.

A

Subacromial bursa

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17
Q

if you ligate anywhere distal to this artery, blood cannot flow to upper limb

A

subscapular a

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17
Q

Pectoralis Major

origin

insertion

action

supply

A

origin = clavicle, sternum, ribs 2-6

insertion = greater tubercle of humerus

action = aDduct & medially rotate humerus

supply = medial/lateral pectoral n’s & thoracoacromial a/v

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18
Q

which ligament divides the suprascapular nerve & artery?

A

superior transverse scapular ligament

artery goes over

nerve goes under

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19
Q

This set of muscles provides inner muscular support for the shoulder.

A

Rotator Cuff

19
Q

Identify.

A

subacromial bursa

21
Q

Identify.

A

Deltoid

23
Q

Identify.

A

Subscapularis

25
Q

Muscles of the pectoral girdle?

A

Deltoid

Teres Major

Teres Minor

Supraspinatus

Infraspinatus

Subscapularis

27
Q

2 muscles that assist the rotator cuff muscles

A

Deltoid & Teres Major

28
Q

this nerve comes off of medial cord of brachial plexus, pierces pec minor to enter pec major

A

medial pectoral n

30
Q

Infraspinatus

origin

insertion

action

supply

A

origin = infraspinous fossa

insertion = greater tubercle of humerus

action = laterally rotate humerus

supply = suprascapular n/a/v & subscapular a/v

31
Q

Borders of the Triangular space?

A

superior = teres minor

inferior = teres major

lateral = long head triceps brachii

31
Q

the accessory nerve and transverse cervical artery supply…

A

trapezius

31
Q

this nerve supplies serratus anterior superficially. Damage to it can occur during mastectomy. (“winged scapula”)

A

long thoracic nerve

32
Q

dorsal scapular n/a supply…

A

levator scapulae & rhomboids

34
Q

Identify 1-2.

A
  1. Suprascapular artery
  2. Suprascapular nerve
35
Q

Pectoralis Minor

origin

insertion

action

supply

A

origin = ribs 3-5

insertion = coracoid process of scapula

action = protracts scapula

supply = medial pectoral n, thoracoacromial a/v

36
Q

Where does clavicle attach to axial skeleton?

A

Acromioclavicular ligament

37
Q

suprascapular artery is a branch off of…

A

thyrocervical trunk

38
Q

upper & lower subscapular nerves come off of…

A

posterior chord

40
Q

Synovial membrane of the glenohumeral joint protrudes through capsule membrane in structures called…

A

bursae

41
Q

Identify the spaces & their contents.

A
  1. Quadrangular space (axillary n, posterior circumflex humeral a)
  2. Triangular interval (radial n, deep brachial a)
  3. Triangular space (circumflex scapular a)
42
Q

Teres Major

origin

insertion

action

supply

A

origin = inferior scapula

insertion = lesser tubercle of humerus

action = medially rotate/extend humerus

supply = lower subscapular n & subscapular a/v

44
Q

Borders of the quadrangular space?

A

Superior = Teres minor

Inferior = Teres major

Medial = long head triceps brachii

Lateral = surgical neck of humerus

45
Q

Identify 1-4.

A
  1. Clavicle
  2. Glenoid Cavity
  3. Acromion
  4. Head of humerus
46
Q

what is purpose of collateral circulation of the scapular region?

A

ensures adequate blood supply to upper limb in event of ligation

46
Q

what envelops pectoralis minor?

A

clavipectoral fascia

47
Q

transverse cervical artery is a branch off…

A

thyrocervical trunk

48
Q

This muscle initiates abduction of the humerus.

A

Supraspinatus

49
Q
A
50
Q

supplies lateral thorax, lateral pec region, lateral breast

A

lateral thoracic artery

52
Q

Identify the branches.

A
  1. Superior thoracic
  2. Thoracoacromial
  3. Lateral Thoracic
  4. Anterior circumflex humeral
  5. Posterior circumflex humeral
  6. Subscapular
  7. Circumflex scapular
  8. Thoracodorsal
53
Q

the upper & lower subscapular nerves & the subscapular artery all supply…

A

subscapularis muscle

54
Q

Supraspinatus

origin

insertion

action

supply

A

origin = supraspinous fossa

insertion = greater tubercle of humerus

action = aBduct humerus 1st 15 degrees

supply = suprascapular n/a/v, dorsal scapular a/v

56
Q

Deltoid

origin

insertion

action

supply

A

origin = lateral clavicle, acromion, spine of scapula

insertion = deltoid tuberosity of humerus

action = aBducts humerus, flexes/extends humerus

supply = axillary n & posterior circumflex humeral a/v

57
Q

the lateral thoracic nerve travels with this artery

A

long thoracic

58
Q

Where does the shoulder articulate with the arm?

A

Glenoid cavity

58
Q

where do the suprascapular nerve & artery pass through?

A

spinoglenoid notch (to the infraspinatus fossa to supply supraspinatus & infraspinatus)

60
Q

branch of subclavian artery that descends across intercostal spaces lateral to sternum & supplies medial/anterior thorax

A

internal thoracic artery

61
Q

4 branches of thoracoacromial artery

A

“Akron City Police Department”

acromial

clavicular

pectoral

deltoid

62
Q

This muscle provides outer muscular support of the shoulder.

A

Deltoid

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