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muscles Flashcards

1
Q

PA of pectoralis major clavicular head

A

medial half of clavicle

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2
Q

PA of pectorals major sternocostal head

A

anterior sternum
superior 6 costal cartilages

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3
Q

DA of pectoralis major

A

lateral lip of intertubercular groove

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4
Q

NS of pectoralis major

A

lateral and medial pectoralis nerves

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5
Q

action of pectoralis major

A

adducts and medially rotates humerus
(clavicle head flexes humerus)

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6
Q

PA of pectoralis minor

A

3-5th rib near their costal cartilages

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7
Q

DA of pectoralisminor

A

coracoid process of the scapula

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8
Q

NS of pectoralis minor

A

medial pectoral nerve

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9
Q

action of pectoralis minor

A

stabilises scapula by drawing it inferiorly and anteriorly on thoracic cage

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10
Q

PA of subclavius

A

junction of the 1st rib and costal cartilage

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11
Q

DA of subclavius

A

inferior surface of the middle third of the clavicle

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12
Q

NS of subclavius

A

nerve to subclavius

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13
Q

action of subclavius

A

anchors and depresses clavicle

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14
Q

PA of serratus anterior

A

external surface of lateral parts of ribs 1-8

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15
Q

DA of serratus anterior

A

anterior surface of medial border of scapula

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16
Q

NS of serratus anterior

A

long thoracic nerve

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17
Q

action of serratus anterior

A

protracts scapula and holds it on thoracic wall, rotates scapula (glenoid fossa superiorly)

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18
Q

PA of trapezius

A

superior nuchal line
external occipital protuberance
nuchal ligament
SPs of C7-T12 vertebrae

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19
Q

DA of trapezius

A

lateral third of clavicle
acromion
spine of the scapula

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20
Q

NS of trapezius

A

accessory nerve (CN XI) (motor)
C3,4 spinal nerves

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21
Q

action of trapezius

A

superior - elevates scapula
middle (& all parts) - retracts scapula
inferior - depresses scapula
superior and inferior - rotate glenoid fossa superiorly

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22
Q

PA of latissimus dorsi

A

SPs of inferior 6 thoracic vertebrae
thoracolumbar fascia
iliac crest
inferior 3-4 ribs

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23
Q

DA of latissimus dorsi

A

floor of the intertubercular groove

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24
Q

NS of latissimus dorsi

A

thoracodorsal nerve

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25
action of latissimus dorsi
extends adducts medially rotates the humerus
26
PA of levator scapulae
transverse processes of C1-4 vertebrae
27
DA of levator scapulae
medial border of the scapula superior to the spine of the scapula
28
NS of levator scapulae
dorsal scapular nerve cervical nerves C3,4
29
action of levator scapulae
elevates scapula and inferiorly rotates glenoid fossa
30
PA of rhomboid minor
nuchal ligament spinous processes of C7-T1
31
PA of rhomboids major
spinous processes of T2-T5
32
DA of rhomboid minor
medial end of scapula spine
33
DA of rhomboid major
medial border of scapula, below spine
34
NS of rhomboids
dorsal scapular nerve
35
action of rhomboids
retract scapula inferiorly rotate glenoid fossa fix scapula against thoracic wall
36
PA of deltoid
lateral third of clavicle, acromion and spine of scapula
37
DA of deltoid
deltoid tuberosity of humerus
38
NS of deltoid
axillary nerve
39
action of deltoid
anterior - flexes and medially rotates arm middle - abducts arm posterior - extends and laterally rotates arm
40
PA of teres major
posterior surface of inferior angle of scapula
41
DA of teres major
medial lip of the intertubercular groove
42
NS of teres major
lower subscapular nerve
43
action of teres major
adducts and medially rotates the arm
44
PA of supraspinatus
supraspinous fossa of scapula
45
DA of supraspinatus
superior facet of the greater tuberscle of humerus
46
NS of supraspinatus
suprascapular nerve
47
action of supraspinatus
initiates and assists deltoid in abduction of arm stabilises GH joint
48
PA of infraspinatus
infraspinous fossa of scapula
49
DA of infraspinatus
middle facet of the greater tubercle of the humerus
50
NS of infraspinatus
suprascapular nerve
51
action of infraspinatus
laterally rotates humerus stabilises GH joint
52
PA of teres minor
middle part of the lateral border of the scapula
53
DA of teres minor
inferior facet of the greater tubercle of the humerus
54
NS of teres minor
axillary nerve
55
action of teres minor
laterally rotates humerus stabilises GH joint
56
PA of subscapularis
subscapular fossa
57
DA of subscapularis
lesser tubercle of the humerus
58
NS of subscapularis
upper and lower subscapular nerve
59
action of subscapularis
medially rotates arm stabilises the GH joint
60
PA of biceps brachii short head
coracoid process
61
PA of biceps brachii long head
supraglenoid tubercle of scapula
62
DA of biceps brachii
radial tuberosity of the radius fascia of the forearm via the bicipital aponeurosis
63
NS of biceps brachii
musculocutaneous nerve
64
action of biceps brachii
supinates forearm flexes forearm (supinated) short head resists downwards dislocation of humerus
65
PA of coracobrachialis
coracoid process of scapula
66
DA of coracobrachialis
middle third of medial humerus
67
NS of coracobrachialis
musculocutaneous nerve
68
action of coracobrachialis
assists in flexion and adduction of the arm resists shoulder dislocation
69
PA of brachialis
distal half of anterior surface of humerus
70
DA of brachialis
coronoid process and tuberosity of ulna
71
NS of brachialis
musculocutaneous nerve
72
action brachialis
flexes forearm in all positions
73
PA of triceps brachii long head
infraglenoid tubercle of the scapula
74
PA of triceps brachii lateral head
posterior surface of humerus superior to radial groove
75
PA of triceps brachii medial head
post surface of humerus inferior to radial groove
76
DA of triceps brachii
olencranon process of ulna
77
NS of triceps brachii
radial nerve
78
action of triceps brachii
extension of forearm long head prevents downward dislocation of humerus
79
PA of anconeus
lateral epicondyle of the humerus
80
DA of anconeus
olecranon of ulna
81
NS of anconeus
radial nerve
82
action of anconeus
assists triceps inextension of forearm
83
PA of pronator teres humeral head
medial epicondyle of humerus
84
PA of pronator teres ulnar head
coronoid process
85
DA of pronator teres
lateral surface of the radius, middle section
86
NS of pronator teres
median nerve
87
action of pronator teres
pronates and flexes forearm
88
PA of flexor carpi radialis
medial epicondyle of humerus
89
DA of flexor carpi radialis
anterior base of 2nd metacarpal
90
NS of flexor carpi radialis
median nerve
91
action of flexor carpi radialis
flexes and radially deviates (abducts) hand at wrist joint
92
PA of palmaris longus
medial epicondyle of humerus
93
DA of palmaris longus
flexor retinaculum and palmer aponeurosis
94
NS of palmaris longus
median nerve
95
action of palmaris longus
flexes hand at wrist joint and tenses palmer aponeurosis
96
PA of flexor carpi ulnaris humeral head
medial epicondyle of humerus
97
PA of flexor carpi ulnaris ulnar head
olecranon process of ulna
98
DA of flexor carpi ulnaris
pisiform hook of hamate \and 5th metatarsal anteriorly
99
NS of flexor carpi ulnaris
ulnar nerve
100
action of flexor carpi ulnaris
flexes and ulnar deviates (adducts) hand at wrist joint
101
PA of flexor digitorum superficialis
medial epicondyle of humerus anterior surface of radius
102
DA of flexor digitorum superficialis
middle phalanges of medial 4 digits (2-5)
103
NS of flexor digitorum superficialis
median nerve
104
action of flexor digitorum superficialis
flexes middle phalanges results in prox and MCP joint flexion
105
PA of flexor digitorum profundus
medial and anterior surfaces of proximal ulna and interosseous membrane
106
DA of flexor digitorum profundus
distal phalanges of medial 4 digits (2-5)
107
NS of flexor digitorum profundus lateral half
median nerve
108
NS of flexor digitorum profundus medial half
ulnar nerve
109
action of flexor digitorum profundus
flexes distal phalanges at the DIPs
110
PA of flexor pollicis longus
distal anterior radius interosseous membrane
111
DA of flexor pollicis longus
distal phalanx of thumb
112
NS of flexor pollicis longus
median nerve
113
action of flexor pollicis longus
flexes phalanges of the thumb
114
PA of pronator quadratus
distal quarter of anterior ulna
115
DA of pronator quadratus
distal quarter of anterior radius
116
NS of pronator quadratus
median nerve
117
action of pronator quadratus
pronates the forearm

Upper limb (1 decks)

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