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Clinical Anatomy 1 Aryssara > Scapular Region > Flashcards

Scapular Region Flashcards

1
Q

The posterior deltoid muscle is ___________ to the infraspinatus muscle

A

Superficial

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2
Q

The axillary nerve and posterior circumflex humeral artery run _________________ on the _____________ of the deltoid muscle

A

Parallel to each other, deep aspect

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3
Q

The long head of the triceps brachii muscle ___________ the teres minor and teres major muscles

A

Passes inbetween

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4
Q

The teres minor muscle is ________ to the intraspinatus muscle

A

Lateral

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5
Q

The suprascapular artery passes ___________ the superior transverse scapular ligament

A

Above (superior to)

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6
Q

The suprascapular nerve passes ______ the superior transverse scapular ligament

A

Below (inferior to)

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7
Q

The circumflex scapular artery passes ________ to the teres minor muscle (transverses the triangular space)

A

Inferior and lateral

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8
Q

Where is the quadrangular space?

A

Bordered by the teres major, teres minor, long head of triceps brachii and the shaft of the humerus.

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9
Q

What passes through the quadrangular space?

A

Axillary nerve and posterior circumflex humerus artery

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10
Q

Where is the scapular notch?

A

Closed off by transverse scapular ligament over the notch on the superior border of scapula.

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11
Q

What passes through the scapular notch?

A

The suprascapular nerve and suprascapular artery.

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12
Q

What nerve and artery passes down the medial border of the scapula?

A

Dorsal scapular nerve and dorsal scapular artery.

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13
Q

Describe a shoulder dislocation.

A

Inferior joint capsule is not reinforced by rotator cuff or ligaments so it is vulnerable, especially when arm is in abducted position. Head of humerus dislocates anterior to the glenohumeral space.

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14
Q

Describe a shoulder separation.

A

Caused by a hard FOOSH or landing on shoulder. The acromioclavicular ligament tears or rips, with possible separation from distal end of clavicle. In severe cases both AC ligament and coracoclavicular lig are torn leaving the acromion free to move inferiority and damage GH joint.

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15
Q

What are the contents of the subacromial space?

A

Supraspinatus muscle and scapular bursae

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16
Q

Where is the subacromion space?

A

It is the space between the acromion and head of the humerus.

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17
Q

What are the 3 bursae in the scapular region?

A

Subacromial bursa, subdeltoid bursa, and subtendinous bursa of subscapularis.

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18
Q

Where is the subacromial bursa?

A

Between the acromion and the supraspinatus tendon.

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19
Q

Where is the subdeltoid bursa?

A

Between the deltoid tendon and greater tubercle of humerus.

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20
Q

Where is the subtendionous bursa of subscapularis?

A

Between the subscapularis tendon and coracoid process.

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21
Q

What is the function of bursa?

A

To reduce friction and cushion the movement of tendon against bone.

22
Q

What attaches to the medial border of the scapula?

A

Rhomboids and serratus anterior

23
Q

What attaches to the lateral border of the scapula?

A

Teres minor

24
Q

What attaches to the inferior angle of the scapula?

A

Teres major

25
Q

What attaches to the superior angle of the scapula?

A

Levator scapulae

26
Q

What attaches to the supraspinous fossa?

A

Supraspinatus

27
Q

What attaches to the infraspinous fossa?

A

Infraspinatus

28
Q

What attaches to the crest of the spine?

A

Trapezius

29
Q

What attaches to the acromion process?

A

Deltoid

30
Q

What attaches to the subscapular fossa?

A

Subscapularis

31
Q

What passes through the suprascapular notch

A

Suprascapular nerve and vessels.

32
Q

The head of the humerus articulates with the ________

A

Glenoid cavity

33
Q

What are the attachments, actions and innervation of the deltoid?

A

Attachments- clavicle, acromion & spine of scapula to deltoid tuberosity of humerus

Actions- flexion and medial rotation (anterior) , abduction (primarily middle), extension & lateral rotation, horizontal extension (posterior) of humerus.

Innervation- axillary n

Spinal Cord Segments- C5-6

34
Q

AAI for Supraspinatus?

A

Attachments- medial 2/3 of the supraspinous fossa to the superior facet of the greater tubercle of the humerus & to shoulder joint capsule.

Actions- initiates humeral abduction & laterally rotates humerus; stabilizes glenohumeral joint (reinforces superior aspect of joint capsule)

Innervation- suprascapular nerve

Spinal Cord Segments- C4-6

35
Q

AAI for infraspinatus?

A

Attachments- medial 2/3 of infraspinous fossa to the middle facet of the greater tubercle of the humerus & to shoulder joint capsule

Actions- lateral rotation of the humerus: stabilizes glenohumeral joint.

Innervation- suprascapular nerve

Spinal Cord Segments- C5-6

36
Q

AAI for teres minor?

A

Attachments- Upper 2/3 of the dorsal surface of the lateral border of the scapula to the inferior facet of the greater tubercle of the humerus & to shoulder joint capsule.

Actions- lateral rotation of the humerus; stabilizes glenohumeral joint.

Innervation- axillary n

Spinal Cord Segments- C5-6

37
Q

AAI for subscapularis?

A

Attachments- subscapular fossa to lesser tubercle of humerus

Actions- medial rotation of humerus; stabilizes glenohumeral joint

Innervation- upper and lower subscapular nerves.

Spinal Cord Segments- C5-6

38
Q

AAI for teres major?

A

Attachments- dorsal surface of the inferior angle of scapula & lower 1/3 of the lateral border of the scapula to the medial lip of the intertubercular sulcus of the humerus.

Actions- humeral adduction, medial rotation & extension

Innervation- lower subscapular nerve.

Spinal Cord Segments- C5-6

39
Q

What are the attachments of supraspinatous?

A

Medial 2/3 of the supraspinous fossa to the superior facet of the greater tubercle of the humerus & to shoulder joint capsule.

40
Q

What are the attachments of infraspinatus?

A

Medial 2/3 of infraspinous fossa to the middle facet of the greater tubercle of the humerus & to shoulder joint capsule

41
Q

What are the attachments of teres minor?

A

Upper 2/3 of the dorsal surface of the lateral border of the scapula to the inferior facet of the greater tubercle of the humerus & to shoulder joint capsule

42
Q

What are the attachments of subscapularis?

A

Subscapular fossa to lesser tubercle of humerus

43
Q

What are the attachments of teres major?

A

Dorsal surface of the inferior angle of scapula & lower 1/3 of the lateral border of the scapula to the medial lip of the intertubercular sulcus of the humerus.

44
Q

What are the attachments of the deltoid?

A

Clavicle, acromion & spine of scapula to deltoid tuberosity of humerus

45
Q

What are the spinal segments of the deltoid?

A

C5-6

46
Q

What are the spinal segments of teres minor?

A

C5-6

47
Q

What are the spinal segments of teres major?

A

C5-6

48
Q

What are the spinal segments of subscapularis?

A

C5-6

49
Q

What are the spinal segments of infraspinatus?

A

C4-6

50
Q

What are the spinal segments of supraspinatus?

A

C4-6

Clinical Anatomy 1 Aryssara (16 decks)

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