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Anat 1 > Shoulder Complex Joint Rot Cuff > Flashcards

Shoulder Complex Joint Rot Cuff Flashcards

Anatomy (123 cards)

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1
Q

sensory supply to shoulder: supraclavicular nerves from the?

A

cervical plexus C3-4

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2
Q

sensory supply to shoulder: supraclavicular nerves supply?

A

the skin over clavicle and over the superior-lateral aspect of the pectoralis major

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3
Q

sensory supply to shoulder: cutaneous branches of dorsal rami penetrate?

A

deep and superficial back muscles

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4
Q

sensory supply to shoulder: cutaneous branches of dorsal rami supply?

A

skin on either side of midline of back

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5
Q

joints of the shoulder complex: 3

A

1 sternoclavicular
2 acromioclavicular
3 glenohumeral

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6
Q

sternoclavicular: articulating bones (3)

A

1 articular notch on sternum
2 sternal end of clavicle
3 first costal cartilage

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7
Q

sternoclavicular: structural type

A

synovial, shallow/saddle, articular disc

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8
Q

sternoclavicular: articular disc aka

A

fibrocartilage meniscus

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9
Q

sternoclavicular: articular disc attatched to

A

superior to clavicle

inferior to manubrium and first costal cartilage

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10
Q

sternoclavicular: functional type

A

diarthrotic, triaxial

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11
Q

acromioclavicular: articulating bones (2)

A

1 concave facet of acromion process

2 convex facet on lateral end of clavicle

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12
Q

acromioclavicular: structural type

A

synovial, plane

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13
Q

acromioclavicular: functional type

A

triaxial, diarthrotic, gliding and rotation

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14
Q

acromioclavicular: movements (3)

A

1 scapular rotation
2 winging
3 tipping

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15
Q

glenohumeral: articulating bones (2)

A

1 glenoid fossa of scapula

2 head of humerus

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16
Q

glenohumeral: structural type

A

synovial, ball and socket

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17
Q

glenohumeral: functional type

A

triaxial, diarthrotic, flexion/extension, abduction/adduction, circumduction, rotation

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18
Q

glenohumeral: ligaments (3)

A

1 glenohumeral
2 coracohumeral
3 coracoacromial

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19
Q

glenohumeral: glenoid labrum

A

fribrocartilage meniscus

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20
Q

superficial extrinsic muscles include: (5)

A 
1 trapezius
2 latissimus dorsi
3 levator scapulae
4 rhomboideus major
5 rhomboideus minor
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21
Q

superficial extrinsic muscles connect what to what?

A

upper limb to axial skeleton

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22
Q

superficial extrinsic muscles innervated by

A

ventral rami/CN XI

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23
Q

trapezius innervation

A

CN XI and ventral rai of 3rd and 4th cervical nerves

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24
Q

trapezius proximal attachment: upper

A

external occipital protuberance, superior nuchal line, and ligamentum nuchae, and spinous process of CV 7

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25
trapezius proximal attachment: middle
spinous processes of TV 1-6
26
trapezius proximal attachment: lower
spinous processes of TV 7-12
27
trapezius distal attachment: upper
lateral 3rd of clavicle
28
trapezius distal attachment: middle
acromion and crest of scapular spine
29
trapezius distal attachment: lower
tubercle of scapular spine
30
trapezius action: upper
elevates scapula
31
trapezius action: middle
adducts (retracts) scapula
32
trapezius action: lower
depresses scapula
33
trapezius action: upward rotate scapula via
upper and lower fibers
34
trapezius: blood supply
dorsal scapular artery
35
latissimus dorsi: innervation
thoracodorsal nerve (C6-8)
36
latissimus dorsi: proximal attachment
spines of TV 7-12 and lumbar sacral vertebrae, posterior iliac crest, and ribs 9-12
37
latissimus dorsi: distal attachment
floor of intertubercular (bicipital) groove
38
latissimus dorsi: action
extends, addducts, and internally rotates the humerus
39
latissimus dorsi: blood supply
thoracodorsal artery and a branch of the subscapular artery
40
levator scapulae: innervation
cervical nerves C3-5 and dorsal scapular nerve C5
41
levator scapulae: proximal attachment
transverse processes of CV 1-4
42
levator scapulae: distal attachment
medial border of scapula at level of and above the spine
43
levator scapulae: action
elevates the scapula at the superior (medial) angle and assists in the downward rotation of the scapula
44
levator scapulae: blood supply
dorsal scapular artery
45
rhomboids: innervation
dorsal scapular nerve (C5)
46
rhomboids: proximal attachment
spines of CV 7 and TV 1 and lower end of ligamentum nuchae (minor) spines of TV 2-4 (major)
47
rhomboids: distal attachment
medial border of scapula from level of the spine inferiorly to the inferior angle
48
rhomboids: action
adducts scapula rotates glenoid fossa downward fixes scapula thoracic wall
49
rhomboids: blood supply
dorsal scapular artery
50
subclavius: origin
junction of first rib and costal cartialge 1
51
subclavius: insertion
inferior surface of middle third of clavicle
52
subclavius: action
anchors and depresses clavicle
53
subclavius: innervation
nerve to subclavius (C5, C6)
54
pectoralis major: innervation
``` lateral and medial pectoral nerves clavicular head (c5, c6) sternal head (c7, c8, t1) ```
55
pectoralis major: origin
anterior surface of medial half of clavicular head anterior surface of manubrium and sternal head costal cartilages 2-6 aponeurosis of external oblique
56
pectoralis major: insertion
crest of greater tubercle
57
pectoralis major: action
adducts and medially rotates arm flexes arm extends arm draws scapula anteriorly and inferiorly
58
pectoralis minor: innervation
medial pectoral nerve (C8, T1)
59
pectoralis minor: origin
ribs 3-5 near costal cartilages
60
pectoralis minor: insertion
coracoid process (3 muscles attach)
61
pectoralis minor: action
stabilizes scapula
62
what muscles attach the scapula to the humerus? (3)
1 deltoid 2 teres major 3 serratus anterior
63
what are the rotator cuff muscles? (4)
1 supraspinatus 2 infraspinatus 3 teres minor 4 subscapularis
64
serratus anterior: innervation
long thoracic nerve (C5, C6, C7)
65
serratus anterior: proximal attachment
external surface of lateral parts of ribs 1-8
66
serratus anterior: distal attachment
anterior surface of medial border of scapula
67
serratus anterior: action
protracts scapula, fixes scapula to thoracic wall, rotates scapula
68
serratus anterior: blood supply
lateral thoracic artery
69
deltoid: innervation
axillary nerve (c5, c6)
70
deltoid: proximal attachment
lateral 1/3 of clavicle, acromion and spine of scapula
71
deltoid: distal attachment
deltoid tuberosity of humerus
72
deltoid: action
flexes, medially rotates, abducts, extends, and laterally rotates humerus
73
deltoid: blood supply
deltoid branch of thoracoacromial artery
74
3 muscles of the deltoid?
``` 1 spinodeltoid 2 acromiodeltoid 3 cleidodeltoid (clavodeltoid) ```
75
teres major: innervation
lower subscapular nerve (C5, C6)
76
teres major: proximal attachment
posterior surface of inferior angle of scapula
77
teres major: distal attachment
medial lip of intertubercular (bicipital) groove of humerus
78
teres major: action
adducts and medially rotates humerus
79
teres major: blood supply
circumflex scapular artery (lower subscapular)
80
scapulothoracic joint: how joint moves
sliding of scapula on thoracic cage
81
coracoacromial arch components: (3)
1 acromion process 2 coracoid process 3 coracoacromial ligament
82
quadrilateral space: boundaries (4)
1 inferior glenohumeral capsule 2 teres major 3 triceps longus 4 surgical neck of humerus
83
quadrilateral space: contents
axillary nerve and posterior circumflex humeral artery
84
elevation (scapula) accomplished by what muscles?
levator scapulae and rhomboids
85
depression (scapula) accomplished by what muscle?
latissimus dorsi
86
abduction (scapula) accomplished by what muscle?
serratus anterior
87
abduction (shoulder) accomplished by what muscles?
middle deltoid and biceps brachii assists
88
upward rotation (scapula) accomplished by what muscles?
serratus anterior and upper and lower trapezius (force couple)
89
downward rotation (scapula) accomplished by what muscles?
rhomboids and levator scapulae
90
scapulothoracic joint: how joint moves
sliding of scapula on thoracic cage
91
coracoacromial arch components: (3)
acromion process coracoid process coracoacromial ligament
92
rotator cuff's 4 muscles?
``` 1 supraspinatus 2 infraspinatus 3 teres minor 4 subscapularis SITS ```
93
involved in snubbing and rotating the head of humerus
rotator cuff
94
supraspinatus: innervation
suprascapular nerve (C4, C5, C6)
95
supraspinatus: proximal attachment
supraspinous fossa of scapula
96
supraspinatus: distal attachment
superior facet of greater tubercle of humerus
97
supraspinatus: action
works with deltoid in abduction of humerus, acts with other rotator cuff muscles in stabilizing shoulder joint
98
supraspinatus: blood supply
suprascapular artery
99
infraspinatus: innervation
suprascapular nerve (c5, c6)
100
infraspinatus: proximal attachment
infraspinous fossa of scapula
101
infraspinatus: distal attachment
middle facet of greater tubercle of humerus
102
infraspinatus: action
laterally rotates humerus, helps hold humeral head in place
103
infraspinatus: blood supply
suprascapular artery
104
teres minor: innervation
axillary nerve (c5, c6)
105
teres minor: proximal attachment
middle part of lateral border of scapula
106
teres minor: distal attachment
inferior facet of greater tubercle of humerus
107
teres minor: action
laterally rotates humerus, helps hold humeral head in place
108
teres minor: blood supply
circumflex scapular artery
109
subscapularis: innervation
upper and lower subscapular nerves (C5, C6, C7)
110
subscapularis: proximal attachment
subscapular fossa of scapular (anterior surface)
111
subscapularis: distal attachment
lesser tubercle of humerus
112
subscapularis: action
medially rotates and adducts humerus | helps hold humeral head in place
113
subscapularis: blood supply
suprascapular artery
114
force couple =
rotate the scapula
115
glenohumeral joint components (2)
1 head of humerus | 2 glenoid fossa of scapula
116
glenoid labrum is and does...
is a fibrocartilage meniscus and deepens articulating surface of glenoid fossa
117
superior and inferior acromioclavicular ligaments reinforce?
the joint capsule
118
coracoclavicular ligament lateral portion is the
trapezoid ligament
119
coracoclavicular ligament medial portion is the
conoid ligament
120
scapulohumeral rhythm: steps in arm abduction (4)
``` 1 movement (searching) of scapula (serratus ant) 2 snubbing of head of humerus into glenoid fossa (rotator cuff) 3 first few degrees of abduction (supraspinatus) 4 external rotation of humerus (infraspinatus) ```
121
deltoid paralysis caused by damage to
axillary nerve
122
serratus anterior paralysis cause by damage to
long thoracic nerve
123
tears in rotator cuff usu happents in
supraspinatus

Anat 1 (19 decks)

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