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Muscles Flashcards

(65 cards)

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1
Q

Trapezius proximal attachment

A
  • medial 1/3 of superior nuchal line
  • external occpital protuberance
  • ligamentum nuchae
  • spines and supraspinous ligaments from C7 to T12
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2
Q

Trapezius distal attachment

A
  • poster border of lateral 1/3 of clavicle
  • acromion
  • scapular spine
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3
Q

Trapezius innervation

A

spinal accessory nerve

ventral rami C3, C4

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4
Q

Trapezius function

A

upward rotation (lower)

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5
Q

Latissimus Dorsi proximal attachment

A
  • spinous process of T7-T12
  • thoracoumbar fascia
  • posterior part of iliac crest
  • inferior 3-4 ribs
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6
Q

Latissimus Dorsi distal attachment

A

-intertubercal groove

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7
Q

Latissium Dorsi innervation

A

thoracodorsal nerve (C6,C7, C8)

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8
Q

Latissium Dorsi function

A

internal rotation, shoulder extension, some adduction

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9
Q

Levator scapulae proximal attachment

A

-transverse processes of C1-C4

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10
Q

Levator scapulae distal attachment

A

-medial scapular border between superior angle and end of scapular spine

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11
Q

Levator scapulae innervation

A

dorsal scapular (C5) and cervical (C3,C4)

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12
Q

Levator scapulae function

A

downward rotation

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13
Q

Rhomboid minor proximal attachment

A
  • lower ligament nuchae

- spines of C7 and T1

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14
Q

Rhomboid minor distal attachment

A

medial end of spine of scapula

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15
Q

Rhomboid minor innervation

A

dorsal scapular (C4,C5)

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16
Q

Rhomboid major proximal attachment

A

spines of T2-T5 vertebrae

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17
Q

Rhomboid major distal attachment

A

-medial border of scapula from spine to inferior angle

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18
Q

Rhomboid major innervation

A

dorsal scapular (C4,C5)

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19
Q

Rhomboid function

A

adduction or retration, downward rotation

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20
Q

Deltoid proximal attachment

A
  • lateral 1/3 clavicle
  • acromion
  • spine of scapula
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21
Q

Deltoid distal attachment

A

-deltoid tuberosity

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22
Q

Deltoid innervation

A

axillary nerve (C5,C6)

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23
Q

Deltoid function

A

anterior: flexion and some abduction, horizontal abduction, internal rotation
posterior: horizontal abduction, extension, external rotation
middle: major abductor of shoulder joint

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24
Q

Teres Major proximal attachment

A

-inferior scapular angle

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25
Teres Major distal attachment
-medial lip of intertubercular groove
26
Teres Major innvervation
lower subscapular nerve (C5, C6)
27
Teres Major function
internal rotation, adduction, extension
28
Supraspinous proximal attachment
-suprascapular fossa
29
Supraspinous distal attachment
-superior facet of greater tubercle of humerus
30
Supraspinous innervation
suprascapular nerve (C4,C5,C6)
31
Supraspinous function:
stabilize, pull head of humerus towards glenoid fossa & allows for some slight abduction
32
Infraspinatus proximal attachment
inferior scapular fossa
33
Infraspinatus distal attachment
medial facet of greater tubercle of humerus
34
Infraspinatus innervation
suprascapular nerve (C5,C6)
35
Infraspinatus function:
external rotation, assist with abduction (pulling head of the joint up)
36
Teres Minor proximal attachment
-upper 2/3 of lateral border of scapula
37
Teres Minor distal attachment
-inferior facet of greater tubercle of humerus
38
Teres Minor innervation
axillary nerve (C5,C6)
39
Teres Minor function
external rotation, adduction
40
Subscapularis proximal attachment
-subscapular fossa
41
Subscapularis distal attachment
-lesser tubercle of humerus
42
Subscapularis innervation
-upper and lower subscapular nerves (C5,C6,C7)
43
Subscapularis function
internal rotation, adduction, horizontal adduction
44
Pectoralis Major proximal attachment
- medial half of clavicle - sternum - upper six costal cartilages
45
Pectoralis Major distal attachment
-lateral lip of intertubercular sulcus
46
Pectoralis Major innervation
medial and lateral pectoral nerves (C5,C6:clavicular, C6, C7,C8,T1-sternal)
47
Pectoralis Major function
downward rotation, protraction
48
Pectoralis Minor proximal attachment
-ribs 3-5
49
Pectoralis Minor distal attachment
-coracoid process
50
Pectoralis Minor innervation
-medial pectoral nerves (C5,C6,C7,C8,T10
51
Pectoralis Minor function
- protraction scapula | - depress scapula
52
Subclavius proximal attachment
-rib 1
53
Subclavius distal attachment
inferior clavicle
54
subclavius innervation
nerve to subclavius (C5,C6)
55
Subclavius function
depression of clavicle
56
Serratus anterior proximal attachment
-lateral regions of ribs 1-8
57
Serratus anterior distal attachment
-anterior surface if medial border of scapula
58
Serratus anterior innervation
-long thoracic nerve (C5,C6,C7)
59
Serratus anterior function
protraction
60
What are the upward rotators of the scapula?
- serratus anterior | - upper trapezius
61
What are the downward rotators of the scapula?
- pec minor - rhomboids - levator scapulae
62
What are the elevators of the scapula?
-traps | levator scapulae
63
What are the depressors of the scapula?
- pec minor | - Lats
64
What are the protractors of the scapula?
Pec minor | serratus anterior
65
What are the retractors of the scapula?
middle traps | rhomboids

Anatomy (16 decks)

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