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Forearm Flashcards

0
Q

Insertion of pronator teres

A

Middle of convexity of lateral surface of radius

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1
Q

Origin of pronator teres

A

Coronoid process of ulna and medial epicondyle of humerus

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2
Q

Innervation of pronator teres

A

Median nerve C6 and C7

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3
Q

Action of pronator teres

A

Pronates and flexes forearm

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4
Q

Origin of flexor carpi radialis

A

Medial epicondyle of humerus

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5
Q

Insertion of flexor carpi radialis

A

Base of 2nd metacarpal

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6
Q

Innervation of flexor carpi radialis

A

Median nerve C6 and C7

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7
Q

Action of flexor carpi radialis

A

Flexes and abducts hand at wrist

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8
Q

Origin palmaris longus

A

Medial epicondyle of humerus

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9
Q

Insertion of palmaris longus

A

Distal half of retinaculum

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10
Q

Innervation of palmaris longus

A

Median nerve C7 and C8

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11
Q

Action of palmaris longus

A

Flexes hand and tenses palmar aponeurosis

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12
Q

Origin of flexor carpi ulnaris

A

Olecranon and posterior border of ulna

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13
Q

Insertion of flexor carpi ulnaris

A

Pisiform, hook of hamate, 5th metacarpAl

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14
Q

Innervation of flexor carpi ulnaris

A

Ulnar nerve C7 and C8

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15
Q

Action of flexor carpi ulnaris

A

Flexes and adducts hand at wrist

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16
Q

Origin of flexor digitorum superficialis

A

Humero-ulnar head: medial epicondyle of humerus and coronoid process of ulna
Radial head: oblique line of radius

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17
Q

Insertion of flexor digitorum superficialis

A

Shaft of middle phalanges of medial four digits

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18
Q

Innvervation of flexor digitorum superficialis

A

Median nerve C7, C8, T1

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19
Q

Action of flexor digitorum superficialis

A

Flexes at wrist joint
Flexes proximal interphalangeal joints of middle four digits, acting mote strongly its also flexes proximal middle phalanges at metacarpalphalangeal joints

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20
Q

Origin of flexor digitorum profundus

A

Proximal three quaters of medial and anteror surfaces of ulna and interoseous membrane

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21
Q

Insertion of flexor digitorum profundus

A

Bases of distal phalanges of 2nd- 5 th digits

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22
Q

Innervation of flexor digitorum profundas

A

lateral part: median nerve C8 and T1

Medial part: ulnar nerve C8 and T1

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23
Q

Action of flexor digitorum profundas

A

Flexes at wrist joint

Flexes distal interphalangeal joint of digits 2-5,

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24
Origin of flexor pollicis longus
Anterior surface of radius amd adjacent interosseous membrane
25
Insertion of flexor pollicis longus
Base of distal phalanx of thumb
26
Innervation of flexor pollicis longus
Anterior interosseous nerve from median C8 and T1
27
Action of flexor pollicis longus
Flexes wrist | Flexes metacarpophalngeal and interphalangeal joimts of thumb
28
Origin of pronator quadratus
Distal quater of anterior surface of ulna
29
Insertion of pronator quadratus
Distal quater of anterior surface of radius
30
Innervation of pronator quadratus
Anterior interosseous nerve C8 and T1
31
Action of pronator quadratus
Pronates forearm, deep fibers bind radius and ulna together
32
Origin of brachioradialis
Lateral supraepicondylar ridge of humerus
33
Insertion of brachioradialis
Lateral surface of distal end of radius
34
Innervation of brachioradialis
Radial nerve C5, C6, C7
35
Action of brachiobradialis
Weak flexion of elbow, best when forearm is mid pronated
36
Origin of extensor carpi radialis longus
Lateral supraepicondylar ridge of humerus
37
Insertion of extensor carpi radialis longus
DAOB of 2nd metacarpal
38
Innveration of extensor carpi radialis longus
Radial nerve C6 and C7
39
Action of extensor carpi radialis longus
Extends and radially deviates wrist joint
40
Origin of extensor carpi radialis brevis
Lateral epicondyle of humerus
41
Insertion of extensor carpi radialis brevis
DAOB of 3rd metacarpal
42
Innervation of extensor carpi radialis brevis
Deep radial branch C7 and C8
43
Action of extensor carpi radialis brevis
Extends and radially deviates wrist joint and active during fist clenching
44
Origin of extensor digitorum
Lateral epicondyle of humerus
45
Insertion of extensor digitorum
Extensor expansions of medial four fingers
46
Innervation of extensor digitorum
Posterior interosseous C7 and C8
47
Action of extensor digitorum
Extends wrist joint | Extends medial four fingers at metacarpal phalangeal joints and second at interphalageal joints
48
Origin of extensor digiti minimi
Lateral epicondyle of humerus
49
Insertion of extensor digiti minimi
Extensor expansion of 5th fingers
50
Innveration of extensor digiti minimi
Posterior interoseous C7 and C8
51
Action of extensor digiti minimi
Extends wrist joint | Extends 5th finger at metacarpal phalangeal joint and second at interphalangeal joiint
52
Origin of extensor carpi ulnaris
Lateral epicondyle of humerus and posterior border of ulna
53
Insertion of extensor carpi ulnaris
DAOB of base of 5th metacarpal
54
Innervation of extensor carpi ulnaris
Posterior interoseous C7 and C8
55
Action of extensor carpi ulnaris
Extends and ulnarlly deviates wrist joint
56
Origin of abductor pollicis longus
Posteriorsurface of proximal halves of ulna, radius, and interosseous membrane
57
Insertion of abductor pollicis longus
Base of 1st metacarpal
58
Innervation of abductor pollicis longus
Post. Interoseous C7 and C8
59
Action of abductor pollicis longus
Extends wrist joint | Abducts thumb and extends at carpometacrpal joint
60
Origin of extensor pollicis longus
Posterior surface of middle third of ulna ans interoseous membrane
61
Insertion of extensor pollicis longus
Dorsal aspect of base of distal phalanx of thumb
62
Innvervation of extensor pollicis longus
Post. Int.
63
Action of extensor pollicis longus
Extends wrist joint | Extends distal phalanx of thumb interphalangeal joint, metacarpalphalngeal joint and carpometacarpal joints
64
Origin of extensor pollicis brevis
Posterior surface of distal third of radius and interosseous membrane
65
Insertion extensor pollicis brevis
Dorsal aspect of base of proximal phalanx of thumb
66
Innvervation of extensor pollicis brevis
Posterior interosseous nerve C7 and C8
67
Action of extensor pollicis brevis
Extends wrist joint | Extends proximal phalanx of thumb at metacarpophalangeal joint, extends carpometacarpal joint
68
Origin of extensor indicis
Posterior surface of distal third of ulna and interosseous membrane
69
Insertion of extensor indicis
Extensor expansion of 2nd finger
70
Innervation of extensor indicis
Posterior interosseous
71
Action of extensor indicis
Extends wrist joint Extends 2nd finger Helps extend hand at wrist
72
Origin of supinator
Lateral epicondyle of humerus, radial collateral and anular ligament, supinator fossa, crest of ulna
73
Insertion of supinator
Lateral, posterior, and anterior surfaces if proximal third of radius
74
Innervation of supinator
Deep radial branch C7 and C8
75
Action of supinator
Supinates forearm

gross (13 decks)

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