L2 COPY Flashcards

1
Q

What is the site of attachment of the nuchal ligament?

A

External occipital protuberance and nuchal groove

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2
Q

What is the nape of the neck formed by?

A

The upper border of trapezius

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3
Q

What spinous process is the superior angle of the scapula opposite to ?

A

T2 spinous process

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4
Q

What spinous process is the spine of the scapula
normally at?

A

The level of T3 spine

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5
Q

What spinous process is the inferior angle opposite?

A

T7 to T8

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6
Q

What are the four muscles passing from the trunk or axial skeleton to scapula?

A

Trapezius, rhomboids and levator scapulae

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7
Q

Name one muscle passing directly to the humerus, with a minor attachment to the scapula

A

Latissimus dorsi

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8
Q

What are the only two scapular region muscles that are not supplied by branches of the brachial plexus?

A

Levator scapulae and trapezius

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9
Q

Name a powerful adductor of the humerus that works with pectoralis major in power adduction of humerus or raising the trunk as in climbing if humerus fixed.

A

Latissimus dorsi

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10
Q

Deltoid origin

A

Lateral third of clavicle, acromion, spine of scapula

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11
Q

Deltoid insertion

A

Deltoid tuberosity of humerus

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12
Q

Deltoid innervation

A

Axillary nerve

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13
Q

Deltoid blood supply

A

Posterior circumflex humeral artery, deltoid branch of thoracoacromial artery

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14
Q

Deltoid actions

A

shoulder abduction, flexion and extension

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15
Q

Trapezius origin

A

External occipital protuberance and superior nuchal line of the back of the skull – ligamentum nuchae – spine processes of all
thoracic vertebra T1 to T12

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16
Q

Trapezius insertion

A

upper - clavicle and acromion of scapula;
middle - spine of scapula;
lower - base of the spine of scapula

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17
Q

Trapezius blood supply

A
  • The transverse cervical artery
  • The dorsal scapular artery,
  • The posterior intercostal arterial branches.
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18
Q

Trapezius innervation

A

Spinal part of the accessory nerve

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19
Q

Trapezius actions

A

Elevates, retracts, rotates the scapula

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20
Q

Latissimus dorsi origin

A

T7 to L5 spinous processes – thoracolumbar fascia –
posterior superior iliac spine and posterior iliac crest

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21
Q

Latissimus dorsi insertion

A

The floor of the intertubercular groove of the humerus

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22
Q

Latissimus dorsi blood supply

A

Thoracodorsal artery

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23
Q

Latissimus dorsi innervation

A

Thoracodorsal nerve

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24
Q

Latissimus dorsi actions

A

Adducts and medially rotates the humerus – raises the trunk – powerful extensor of the humerus from the flexed position

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25
Rhomboid major and minor origin
Spines of upper six thoracic vertebra
26
Rhomboid major and minor insertion
Dorsal surface of medial border of scapula rhomboid minor above and major below
27
Rhomboid major and minor actions
Elevates / retracts the scapula
28
Rhomboid major and minor nerve supply
Dorsal scapular nerve
29
Rhomboid major and minor blood supply
Dorsal scapular artery
30
Levator scapulae origin
3 to 4 slips passing from transverse tubercles C1-C4
31
Levator scapulae insertion
Superior angle of scapula
32
Levator scapulae innervation
Direct branches from cervical plexus C3, C4
33
Levator scapulae actions
Elevates the scapula
34
Levator scapulae blood supply
Dorsal scapular artery
35
Teres major origin
Inferior angle dorsal surface of scapula
36
Teres major insertion
Medial lip intertubercular groove humerus
37
Teres major innervation
Lower subscapular nerve C6, C7
38
Teres major blood supply
Subscapular and circumflex scapular arteries
39
Teres major actions
Adduction & medial rotation of the humerus
40
Teres minor origin
Lateral border of the scapula
41
Teres minor innervation
Axillary nerve
42
Teres minor insertion
Inferior facet of greater tubercle of the humerus
43
Teres minor blood supply
Subscapular and circumflex scapular artery
44
Teres minor actions
Adduction and lateral rotation of humerus
45
Supraspinatus origin
Supraspinous fossa scapula
46
Supraspinatus insertion
Upper facet greater tubercle of humerus
47
Supraspinatus innervation
Suprascapular nerve (upper trunk)
48
Supraspinatus blood supply
Suprascapular artery
49
Supraspinatus actions
Initiation of abduction + part of ‘rotator cuff’
50
Infraspinatus origin
Infraspinous fossa
51
Infraspinatus insertion
Middle facet greater tubercle of humerus
52
Infraspinatus blood supply
- Suprascapular - Circumflex scapular arteries.
53
Infraspinatus innervation
Suprascapular nerve (upper trunk BP)
54
Infraspinatus actions
Lateral rotation of arm, + part of ‘rotator cuff’ group
55
Subscapularis origin
Subscapular fossa
56
Subscapularis insertion
Lesser tubercle of Humerus
57
Subscapularis innervation
Upper & lower subscapular nerves C5, C6, C7
58
Subscapularis blood supply
- Subscapular - Suprascapular - Circumflex scapular arteries
59
Subscapularis actions
Medial rotation & adduction of humerus / + part of ‘rotator cuff’
60