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3A - Random Stuff for 3rd Year Exam > Anatomy - Upper Limb Muscles > Flashcards

Anatomy - Upper Limb Muscles Flashcards

(127 cards)

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1
Q

Kind of joint is sterno-clavicular

A

Synovial saddle

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2
Q

Kind of joint is acromioclavicular

A

Synovial plane

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3
Q

Deltoid - attachment

A

Origin - lateral third of clavicle, acromion and spine of scapula

Insertion - deltoid tuberosity on humerus

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4
Q

Deltoid - innervation

A

Axillary nerve

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5
Q

Deltoid

A

Anterior - flexion and medial rotation

Posterior - extension and lateral rotation

Middle - abduction

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6
Q

Teres major - attachments

A

Origin - posterior surface of inferior angle of scapula

Insertion - intertubercular groove of hymerus

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7
Q

Teres major - innervation

A

Lower subscapular nerve

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8
Q

Teres major - action

A

Adducts and extends shoulder

Medially rotates arm

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9
Q

What are the 4 rotary cuff muscles

A

Supraspinatus

Infraspinatus

Subscapularis

Teres minor

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10
Q

Supraspinatus - attachments

A

Origin - supraspinous fossa of scapula

Insertion - greater tubercle of humerus

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11
Q

Supraspinatus - innervation

A

Suprscapular nerve

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12
Q

Supraspinatus - actions

A

Abduction

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13
Q

Infraspinatus - attachments

A

Origin - infraspinous fossas

Insertion - greater tubercle of humerus

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14
Q

Infraspinatus - innervation

A

Suprascapular nerve

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15
Q

Infraspinatus - actions

A

Laterally rotates arm

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16
Q

Subscapularis - attachments

A

Origin - subscapular fossa

Insertion - lesser tubercle of humerus

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17
Q

Subscapularis - innervation

A

Upper and lower subscapular nerves

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18
Q

Subscapularis - actions

A

Medially rotates arm

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19
Q

Teres minor - attachments

A

Origin - posterior surface of scapula

Insertion - greater tubercle of humerus

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20
Q

Teres minor- innervation

A

Axillary nerve

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21
Q

Teres minor - actions

A

Laterally rotates arm

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22
Q

Trapezius - attachments

A

Origin - skull, spinous processes C7-T12

Insertion - clavicle, acromion and scapula spine

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23
Q

Trapezius - innervation

A

Accessory nerve

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24
Q

Trapezius - actions

A

Upper - elevates scapula

Middle - retracts scapula

Lower - depresses scapula

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25
Latissimus dorsi - attachments
Origin - spinous processes T6-T12, thoracolumbar fascia, iliac crest and inferior 3 ribs Insertion - intertubucular sulcus of humerus
26
Latissimus dorsi - innervation
Thoracodorsal nerve
27
Latissimus dorsi - actions
Extends, adducts and medially roates upper limb
28
Levator scapulae - attachments
Origin - transverse processes of C1-C4 Insertion - medial border of scapula
29
Levator scapulae - innervation
Dorsal scapular nerve
30
Levator scapulae - actions
Elevates scapula
31
Rhomboideus major - attachments
Origin - spinous processes T2-T5 Insertion - medial border of scapula
32
Rhomboideus major - innervation
Dorsal scapular nerve
33
Rhomboideus major - actions
Retracts and roates scapula
34
Rhomboideus minor - attachments
Origin - spinous processes of C7-T1 Insertion - medial border of scapula
35
Rhomboideus minor - innervation
Dorsal scapular nerve
36
Rhomboideus minor - actions
Retracts and rotates scapula
37
Bicep brachii - attachments
Long head origin - supraglenoid tubercle of scapula Short head origin - coracoid process Insertion of both - radial tuberosity and fascia of forearm via bicipital aponeurosis
38
Bicep brachii - innervation
Musculocutaneous nerve
39
Bicep brachii - actions
Supination of forearm Flexion of shoulder Flexion of elbow
40
Coracobrachialis - attachments
Origin - coracoid process of scapula Insertion - medial side of humeral shaft
41
Coracobrachialis - innervation
Musculocutaneous nerve
42
Coracobrachialis - actions
Flexion of shoulder
43
Brachialis - attachments
Origin - medial and lateral humeral shaft Insertion - ulnar tuberosity
44
Brachialis - innervation
Musculocutaneous nerve, with contribution from radial
45
Brachialis - actions
Flexion of elbow
46
Tricep brachi - attachments
Long head origin - infraglenoid tubercle Lateral head origin - humerus superior to radial groove Medial head origin - humerus, inferior to radial groove Insertion - olecranon of ulna
47
Tricep brachii - innervation
Radial nerve
48
Tricep brachii - action
Extension of arm at elbw
49
Flexor carpi ulnaris - attachments
Origin - medial epicondyle Insertion - pisiform carpal bone
50
Flexor carpi ulnaris - innervation
Ulnar nerve
51
Flexor carpi ulnaris - actions
Flexion and adduction of wrist
52
Palmaris longus - attachments
Origin - medial epicondyle Insertion - flexor retinaculum of wrist
53
Palmaris longus - innervation
Median nerve
54
Palmaris longus - actions
Flexion of wrist
55
Flexor carpi radialis - attachments
Origin - medial epicondyle Insertion - base of metacarpals II and III
56
Flexor carpi radialis - innervation
Median nerve
57
Flexor carpi radialis - actions
Flexion and abduction at wrist
58
Pronator teres - attachements
Origin - medial epicondyle and coronoid process of ulna Insertion - mid shaft of radius
59
Pronator teres - innervation
Median nerve
60
Pronator teres - actions
Pronator of forearm
61
Flexor digitorum superficialis - attachments
Origin - medial epicondyle of humerus and from radius Insertion - 4 tendons travel through carpal tunnel to middle phalanges of fingers
62
Flexor digitorum superficialis - innervation
Median nerve
63
Flexor digitorum superficialis - actions
Flexes metecarpophalangeal, proximal interphalangeal and wrist joints
64
Flexor digitorum profundus - attachments
Origin - ulnar and associated interosseous membrane Insertion - splits into 4 tendons at wrist and attaches to distal phalanges of 4 fingers
65
Flexor digitorum profundus - innervation
Medial half (acts on little and ring fingers) by ulnar Lateral half (middle and index fingers) by anterior interosseous branch of median nerve
66
Flexor digitorum profundus - actions
Flexion of distal interphalangeal joints, metacarpophalangeal joints and wrist
67
Flexor pollicis longus - attachments
Origin - anterior surface radius Insertion - distal phalanx of thumb
68
Flexor pollicis longus - innervation
Median nerve (anterior interosseous branch)
69
Flexor pollicis longus - actions
Flexion of interphalangeal joint and metacarpophalangeal joint of thumb
70
Pronator quadratus - attachment
Origin - anterior surface of ulna Insertion - anterior surface of radius
71
Pronator quadratus - innervation
Median nerve (anterior interosseous branch)
72
Pronator quadratus - actions
Pronation of forearm
73
Brachioradialis - attachments
Origin - proximal aspect of lateral supracondyler ridge of humerus Insertion - distal end of radius just before styloid process
74
Brachioradialis - innervation
Radial nerve
75
Brachioradialis - actions
Flexion of elbow
76
Extensor carpi radialis longus and brevis - attachments
ECRL origin - supracondylar ridge ECRB - lateral epicondyle Insertion - metacarpal bones II and III
77
Extensor carpi radialis longus and brevis - innervation
Radial nerve
78
Extensor carpi radialis longus and brevis - actions
Extends and abducts wrist
79
Extebsir digitorum communis - attachments
Origin - lateral epicondyle Insertion - splits into 4 tendons, inserts into extensor hood each finger
80
Extensor digitorum communis - innervation
Radial nerve (deep branch)
81
Extensor digitorum communis - actions
Extends medial 4 fingers at MCP and IP joints
82
Extensor digiti minimi - attachments
Origin - lateral epicondyle of humerus Insertion - with the extensor digitorum tendon into extensor hood of little finger
83
Extensor digiti minimi - innervation
Radial nerve (deep branch)
84
Extensor digiti minimi - actions
Extension of little finger, contributes to extension of wrist
85
Extensor carpi ulnaris - attachments
Origin - lateral epicondyle Insertion - base of metacarpal V
86
Extensor carpi ulnaris - innervation
Radial nerve (deep branch)
87
Extensor carpi ulnaris - actions
Extension and adduction of wrist
88
Anconeus - attachments
Origin - lateral epicondyle Insertion - olecranon
89
Anconeus - innervation
Radial nerve
90
Anconeus - actions
Extension of elbow Abducts the ulna during pronation of forearm
91
Supinator - attachments
Origin - lateral epicondyle of humerus, posteiror surface of ulna Insertion - posterior surface of radius
92
Supinator - action
Supination of forearm
93
Supinator - innervation
Radial nerve (deep branch)
94
Abductor pollicis longus - attachments
Origin - interosseous membrane and adjacent surfaces of ulna and radius Insertion - lateral side of metacarpal I
95
Abductor pollicis longus - innervation
Radial nerve (posterior interosseous branch)
96
Abductor pollicis longus - actions
Abduction of thumb
97
Extensor pollicis brevis - attachments
Origin - posterior surface of radius Insertion - proximal phalanx of thumb
98
Extensor pollicis brevis - innervation
Radial nerve (posterior interosseous branch)
99
Extensor pollicis brevis - actions
Extension of MCP and CMC joints of thumb
100
Extensor pollicis longus - attachments
Origin - posterior surface of ulna Insertion - distal phalanx of thumb
101
Extensor pollicis longus - innervation
Radial nerve (posterior interosseous branch)
102
Extensor pollicis longus - actions
Extends all joints of thumb
103
What are the thenar muscles?
Opponens pollicis Abductor pollicis brevis Flexor pollicis brevis
104
Opponents pollicis - actions
Opposes the thumb by medially rotating and flexing the metacarpal on trapezium
105
Opponens pollicis - innervation
Median nerve
106
Abductor pollicis brevis - innervation
Median nerve
107
Abductor pollicis brevis - actions
Abducts thumb
108
Flexor pollicis brevis - innervation
Median nerve, deep head by ulnar nerve
109
Flexor pollicis brevis - actions
Flexion of MCP of thumb
110
What are the hypothenar muscles?
Opponens digiti minimi Abductor digiti minimi Flexor digiti minimi
111
Opponens digiti minimi - innervation
Ulnar nerve
112
Opponens digiti minimi - actions
Opposition of little finger by roating metacarpal of little finger towards palm
113
Abductor digiti minimi - innervation
Ulnar nerve
114
Abductor digiti minimi - actions
Abduction of little finger
115
Flexor digiti minimi brevis - innervation
Ulnar nerve
116
Flexor digiti minimi brevis - actions
Flexes the MCP joint of little finger
117
Lumbricals - attachment
Origin - tendon of flexor digitorum profundus Insertion - pass dorsally and laterally around each finger and insert onto extensor hood
118
Lumbricals action - flexion of MCP joint and extension of IP joint of each digit
119
Lumbricals - innervation
Lateral (index and middle finger) - median nerve Medial - (ring and little finger) - ulnar nerve
120
Dorsal interossei - innervation
Ulnar nerve
121
Dorsal interossei - action
Abduction of fingers at MCP joint
122
Palmar interossei - innervation
Ulnar nerve
123
Palmar interossei - actions
Adduction of fingers at MCP joint
124
Palmaris brevis - innervation
Ulnar nerve
125
Palmaris brevis - actions
Wrinkles skin of hypothenar eminence to improve grip
126
Adductor pollicis - innervation
Ulnar nerve
127
Adductor pollicis - actions
Adductor of thumb

3A - Random Stuff for 3rd Year Exam (96 decks)

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