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PHTH 510: Anatomy > Upper Extremity Muscle OIIA's > Flashcards

Upper Extremity Muscle OIIA's Flashcards

1
Q

Origin: Flexor carpi ulnaris

A

medial epicondyle & olecranon

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2
Q

Insertion: Flexor carpi ulnaris

A

pisiform, hamate, & 5th metacarpal

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3
Q

Innervation: Flexor carpi ulnaris

A

ulnar nerve (C7, C8)

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4
Q

Action: Flexor carpi ulnaris

A

flexes and adducts the wrist (ulnar deviation)

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5
Q

Origin: Palmaris longus

A

medial epicondyle

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6
Q

Insertion: Palmaris longus

A

Palmar aponeurosis and flexor retinaculum

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7
Q

Innervation: Palmaris longus

A

Median nerve (C7, C8)

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8
Q

Action: Palmaris longus

A

flexes wrist & tenses plantar aponeurosis

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9
Q

Origin: Flexor carpi radialis

A

medial epicondyle

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10
Q

Insertion: Flexor carpi radialis

A

base of metacarpals II & III

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11
Q

Innervation: Flexor carpi radialis

A

Median nerve (C6, C7)

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12
Q

Action: Flexor carpi radialis

A

flexes and abducts (radial deviation) the wrist

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13
Q

Origin: Pronator teres

A

medial epicondyle & coronoid process

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14
Q

Insertion: Pronator teres

A

lateral surface of the mid-shaft of the radius

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15
Q

Innervation: Pronator teres

A

Median nerve (C6, C7)

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16
Q

Action: Pronator teres

A

Pronation

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17
Q

Origin: Flexor digitorum superficialis

A

medial epicondyle, margin coronoid process, and oblique line of radius

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18
Q

Insertion: Flexor digitorum superficialis

A

middle phalanges of digits 2-5

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19
Q

Innervation: Flexor digitorum superficialis

A

Median nerve (C7, T1)

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20
Q

Action: Flexor digitorum superficialis

A

flexes wrist and flexes middle and proximal phalanges of digits 2-5

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21
Q

Origin: Flexor digitorum profundus

A

anterior & medial surface of the ulna & interosseous membrane

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22
Q

Insertion: Flexor digitorum profundus

A

Distal phalanges of digits 2-5

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23
Q

Innervation: Flexor digitorum profundus

A

Interosseous branch of the median and ulnar nerves (C8, T1)

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24
Q

Action: Flexor digitorum profundus

A

flexes distal interphalangeal joints

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25
Origin: Flexor pollicis longus
anterior surface of radius & interosseous membrane
26
Insertion: Flexor pollicis longus
base of distal phalanx of thumb
27
Innervation: Flexor pollicis longus
Median nerve (C7, C8)
28
Action: Flexor pollicis longus
flexes distal phalanx of the thumb
29
Origin: Pronator quadratus
Distal fourth of anterior surface of the ulna
30
Insertion: Pronator quadratus
distal fourth of anterior surface of the radius
31
Innervation: Pronator quadratus
median nerve (C7, C8)
32
Action: Pronator quadratus
pronation
33
Origin: Brachioradialis
lateral supraepicondylar ridge
34
Insertion: Brachioradialis
lateral side of the base of the styloid process of the radius
35
Innervation: Brachioradialis
radial nerve (C5, C6)
36
Action: Brachioradialis
flexes the forearm at the elbow
37
Origin: Extensor carpi radialis longus
lateral supraepicondylar ridge
38
Insertion: Extensor carpi radialis longus
base of metacarpal II
39
Innervation: Extensor carpi radialis longus
radial nerve (C6, C7)
40
Action: Extensor carpi radialis longus
extends & abducts the wrist
41
Origin: Extensor carpi radialis brevis
lateral epicondyle
42
Insertion: Extensor carpi radialis brevis
base of metacarpal III
43
Innervation: Extensor carpi radialis brevis
deep branch of radial nerve (C7, C8)
44
Action: Extensor carpi radialis brevis
extends and adducts the wrist
45
Origin: Extensor digitorum
lateral epicondyle
46
Insertion: Extensor digitorum
base of middle phalanges of digits 2-5
47
Innervation: Extensor digitorum
Posterior interosseous nerve (C7, C8)
48
Action: Extensor digitorum
extends digits 2-5
49
Origin: Extensor digiti minimi
lateral epicondyle
50
Insertion: Extensor digiti minimi
dorsal digital expansion on the proximal phalanx of the little finger
51
Innervation: Extensor digiti minimi
posterior interosseous nerve (C7, C8)
52
Action: Extensor digiti minimi
extends the little finger
53
Origin: Extensor carpi ulnaris
lateral epicondyle & posterior border of ulna
54
Insertion: Extensor carpi ulnaris
tubercle on the base of the medial side of metacarpal V
55
Innervation: Extensor carpi ulnaris
posterior interosseous (C7, C8)
56
Action: Extensor carpi ulnaris
extends & adducts the wrist
57
Origin: Anconeus
lateral epicondyle
58
Insertion: Anconeus
Olecranon process & proximal posterior surface of ulna
59
Innervation: Anconeus
radial nerve (C7, C8)
60
Action: Anconeus
-Abduction of the ulna in pronation (it keeps the center of the palm over the same point when the hand is flipped) -Accessory extensor of the elbow
61
Origin: Supinator
-Superficial: lateral epicondyle -Deep: superior crest of ulna
62
Insertion: Supinator
lateral surface of radius superior to the anterior oblique line
63
Innervation: Supinator
posterior interosseous (C6, C7)
64
Action: Supinator
supination
65
Origin: Abductor pollicis longus
posterior surface of ulna & radius, and interosseous membrane
66
Insertion: Abductor pollicis longus
lateral side of base of metacarpal I
67
Innervation: Abductor pollicis longus
posterior interosseous (C7, C8)
68
Action: Abductor pollicis longus
abducts carpometacarpal joint of thumb
69
Origin: Extensor pollicis brevis
posterior surface of radius & interosseous membrane
70
Insertion: Extensor pollicis brevis
dorsal surface of base of proximal phalanx of the thumb
71
Innervation: Extensor pollicis brevis
posterior interosseous (C7, C8)
72
Action: Extensor pollicis brevis
Extension of thumb, adduction of the wrist
73
Origin: Extensor pollicis longus
posterior surface of ulna & interosseous membrane
74
Insertion: Extensor pollicis longus
dorsal surface of base of the distal phalanx of the thumb
75
Innervation: Extensor pollicis longus
posterior interosseous (C7, C8)
76
Action: Extensor pollicis longus
extension of thumb, abduction of wrist
77
Origin: Extensor indicis
posterior surface of ulna & interosseous membrane
78
Insertion: Extensor indicis
extensor hood of index finger
79
Innervation: Extensor indicis
posterior interosseous (C7, C8)
80
Action: Extensor indicis
Extension of the wrist and joints of digit II
81
Origin: Trapezius
-Superior nuchal line -Occipital protuberance -Spinous processes of C7-T12
82
Insertion: Trapezius
-Clavicle -Acromion -Spine of scapula
83
Innervation: Trapezius
Accessory nerve (CN11)
84
Action: Trapezius
-Upper: elevates scapula -Middle: retracts scapula -Lower: depresses scapula
85
Origin: Deltoid
-Inferior spine of scapula -Lateral margins of acromion -Anterior border of lateral clavicle
86
Insertion: Deltoid
Deltoid tuberosity of humerus
87
Innervation: Deltoid
Axillary nerve (C5, C6)
88
Action: Deltoid
-Anterior: flexes and medially rotates arm -Middle: abducts arm -Posterior: extends and laterally rotates arm
89
Origin: Levator scapulae
Transverse processes of C1-C4 vertebrae
90
Insertion: Levator scapulae
Superior angle of scapula
91
Innervation: Levator scapulae
Dorsal scapular (C5) and cervical C3 & C4 nerves
92
Action: Levator scapulae
Elevates scapula and tilts the glenoid cavity inferiorly by rotating the scapula
93
Origin: Rhomboid major
Spinous processes of T2-T5
94
Insertion: Rhomboid major
Medial border of scapula below scapular spine
95
Innervation: Rhomboid major
Dorsal scapular nerve (C4, C5)
96
Action: Rhomboid major
Retract scapula and rotate it to depress glenoid cavity, fix scapula to thoracic wall
97
Origin: Rhomboid minor
Spinous processes of C7 and T1
98
Insertion: Rhomboid minor
Medial border of scapula above scapular spine
99
Innervation: Rhomboid minor
Dorsal scapular nerve (C4, C5)
100
Action: Rhomboid minor
Retract scapula and rotate it to depress glenoid cavity, fix scapula to thoracic wall
101
Origin: Supraspinatus
Supraspinatus fossa of scapula
102
Insertion: Supraspinatus
Greater tubercle of humerus
103
Innervation: Supraspinatus
Suprascapular nerve (C5, C6)
104
Action: Supraspinatus
Initiates arm abduction
105
Origin: Infraspinatus
Infraspinatus fossa of scapula
106
Insertion: Infraspinatus
Greater tubercle of humerus
107
Innervation: Infraspinatus
Suprascapular nerve (C5, C6)
108
Action: Infraspinatus
Externally rotates arm
109
Origin: Teres minor
Lateral border of scapula
110
Insertion: Teres minor
Greater tubercle of humerus
111
Innervation: Teres minor
Axillary nerve (C5, C6)
112
Action: Teres minor
Externally rotates arm
113
Origin: Teres major
Inferior angle of scapula
114
Insertion: Teres major
Intertubercular groove of humerus
115
Innervation: Teres major
Lower subscapular nerve (C5, C6)
116
Action: Teres major
-Extension -Adduction -Internal rotation
117
Origin: Pectoralis major
-Clavicular head: anterior surface of clavicle -Sternocostal head: anterior surface of sternum, first 7 costal cartilages
118
Insertion: Pectoralis major
Lateral lip of intertubercular sulcus of humerus
119
Innervation: Pectoralis major
-Clavicular head: medial and lateral pectoral nerves (C5, C6) -Sternocostal head: C7 to T1 spinal nerves
120
Action: Pectoralis major
-Flexion of arm -Adduction of arm -Internal rotation of arm
121
Origin: Subclavius
First rib and its costal cartilage
122
Insertion: Subclavius
Middle one-third of clavicle
123
Innervation: Subclavius
Nerve to subclavius (C5, C6)
124
Action: Subclavius
Depresses clavicle down and forward
125
Origin: Pectoralis minor
Ribs 3-5
126
Insertion: Pectoralis minor
Coracoid process of scapula
127
Innervation: Pectoralis minor
Medial pectoral nerve (C8-T1)
128
Action: Pectoralis minor
Elevates the ribs and draws the scapula down and medially
129
Origin: Serratus anterior
Ribs 1-9
130
Insertion: Serratus anterior
Costal surface of medial border of scapula
131
Innervation: Serratus anterior
Long thoracic nerve (C5-C7)
132
Action: Serratus anterior
-Protraction and rotation of the scapula -Keeps scapula pressed against the thoracic cage
133
Origin: Subscapularis
Subscapular fossa
134
Insertion: Subscapularis
Lesser tubercle of humerus
135
Innervation: Subscapularis
Upper and lower subscapular nerves (C5 & C6)
136
Action: Subscapularis
Internally rotates and adducts arm
137
Origin: Latissimus dorsi
-Spinous processes of T7-L1 -Thoracolumbar fascia -Iliac crest -Inferior 3-4 ribs
138
Insertion: Latissimus dorsi
-Intertubercular groove of humerus -Inferior angle of the scapula
139
Innervation: Latissimus dorsi
Thoracodorsal nerve (C6-C8)
140
Action: Latissimus dorsi
Adducts, extends, and internally rotates arm
141
Origin: Coracobrachialis
Coracoid process
142
Insertion: Coracobrachialis
Mid-shaft of humerus on antero-medial surface
143
Innervation: Coracobrachialis
Musculocutaneous nerve (C5-C7)
144
Action: Coracobrachialis
Adduction and flexion of arm
145
Origin: Brachialis
Anterior distal half of the humerus
146
Insertion: Brachialis
Tuberosity of ulna
147
Innervation: Brachialis
Musculocutaneous nerve (C5, C6)
148
Action: Brachialis
Flexion of forearm
149
Origin: Biceps brachii
-Long head: supraglenoid tubercle of scapula -Short head: coracoid process
150
Insertion: Biceps brachii
Radial tuberosity
151
Innervation: Biceps brachii
Musculocutaneous nerve (C5, C6)
152
Action: Biceps brachii
Flexion and supination of forearm
153
Origin: Triceps brachii
-Long head: infraglenoid tubercle -Lateral head: posterior surface of humerus -Medial head: posterior surface of humerus
154
Insertion: Triceps brachii
Olecranon
155
Innervation: Triceps brachii
Radial nerve (C6-C8)
156
Action: Triceps brachii
-Extension of forearm -Long head can also extend & adduct the arm

PHTH 510: Anatomy (5 decks)

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