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HAE > Forearm > Flashcards

Forearm Flashcards

1
Q

Bones of wrist

A

Scaphoid, lunate, triquetral, pisiform

Trapezium, trapezoid, capitate, hamate

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2
Q

Wrist joint

A

Ulnar and radial collateral ligaments
Articular disc distal to ulna
Scaphoid and lunate articulate with radius
Can flex, extend, adduct, abduct

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3
Q

Compartments of forearm

A

Flexor - anteromedial, ventral muscle mass, arise from medial epicondyle, median and ulnar nerves
Extensor - posterolateral, dorsal muscle mass, arise from lateral epicondyle, radial nerve

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4
Q

Pronator teres origin

A

Common flexor tendon (medial epicondyle of humerus)

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5
Q

Pronator teres insertion

A

Radius, mid-shaft

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6
Q

Pronator teres innervation

A

Median nerve (direct, superficial compartment)

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7
Q

Pronator teres action

A

Pronates forearm

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8
Q

Flexor carpi radialis origin

A

Common flexor tendon (medial epicondyle of humerus)

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9
Q

Flexor carpi radialis insertion

A

Metacarpals

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10
Q

Flexor carpi radialis innervation

A

Median nerve (direct, superficial compartment)

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11
Q

Flexor carpi radialis action

A

Flexes and abducts hand

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12
Q

Palmaris longus origin

A

Common flexor tendon (medial epicondyle of humerus)

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13
Q

Palmaris longus insertion

A

Palmar aponeurosis

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14
Q

Palmaris longus innervation

A

Median nerve (direct, superficial compartment)

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15
Q

Palmaris longus action

A

Flexes hand

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16
Q

Flexor carpi ulnaris origin

A

Common flexor tendon (medial epicondyle of humerus)

Ulna

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17
Q

Flexor carpi ulnaris insertioin

A

Pisiform, hamate, 5th metacarpal

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18
Q

Flexor carpi ulnaris innervation

A

Ulnar nerve (direct)

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19
Q

Flexor carpi ulnaris action

A

Flexes and adducts hand

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20
Q

Flexor digitorum superficialis origin

A

Common flexor tendon (medial epicondyle of humerus)

Radius

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21
Q

Flexor digitorum superficialis insertion

A

Digits 2-5, middle phalanges

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22
Q

Flexor digitorum superficialis innervation

A

Median nerve (direct, superficial compartment)

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23
Q

Flexor digitorum superficialis action

A

Flexes hand and MP/PIP joints of digits 2-5

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24
Q

Flexor pollicis longus origin

A

Radius, interosseous membrane

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25
Flexor pollicis longus insertion
Distal phalanx of thumb
26
Flexor pollicis longus innervation
Anterior interosseous branch (median)
27
Flexor pollicis longus action
Flexes MP/IP joints of thumb
28
Flexor digitorum profundus origin
Ulna, interosseous membrane
29
Flexor digitorum profundus insertion
Digits 2-5, distal phalanges
30
Flexor digitorum profundus innervation
lateral half: 1/2 anterior interosseous (median) | medial 1/2: ulnar nerve
31
Flexor digitorum profundus action
Flexes hand and MP/DIP joins of digits 2-5
32
Pronator quadratus origin
Distal shaft of ulna
33
Pronator quadratus insertion
Distal shaft of radius
34
Pronator quadratus innervation
Anterior interosseous (median)
35
Pronator quadratus action
Pronates forearm
36
Extensor digitorum origin
Common extensor tendon (lateral epicondyle)
37
Extensor digitorum insertion
Digits 2-5 (extensor expansion)
38
Extensor digitorum innervation
Radial nerve (deep branch)
39
Extensor digitorum action
Extends wrist and digits 2-5
40
Extensor digiti minimi origin
Common extensor tendon (lateral epicondyle)
41
Extensor digiti minimi insertion
Digit 5 (extensor expansion)
42
Extensor digiti minimi innervation
Radial nerve (deep branch)
43
Extensor digiti minimi action
Extends 5th digit
44
Extensor carpi ulnaris origin
Common extensor tendon (lateral epicondyle)
45
Extensor carpi ulnaris insertion
Metacarpals
46
Extensor carpi ulnaris innervation
Radial nerve (deep branch)
47
Extensor carpi ulnaris action
Extends and adducts wrist
48
Extensor carpi radialis longus origin
Lateral supracondylar ridge
49
Extensor carpi radialis longus insertion
Metacarpals
50
Extensor carpi radialis longus innervation
Radial nerve (direct)
51
Extensor carpi radialis longus action
Extends and abducts wrist
52
Extensor carpi radialis brevis origin
Common extensor tendon (lateral epicondyle)
53
Extensor carpi radialis brevis insertion
Metacarpals
54
Extensor carpi radialis brevis innervation
Radial nerve (direct)
55
Extensor carpi radialis brevis action
Extends and abducts wrist
56
Abductor pollicis longus origin
Midshaft radius and ulna Interosseous membrane (U shaped origin)
57
Abductor pollicis longus insertion
1st metacarpal
58
Abductor pollicis longus innervation
Posterior interosseous (radial)
59
Abductor pollicis longus action
Abducts thumb
60
Extensor pollicis brevis origin
Radius (distal shaft) | Interosseous membrane
61
Extensor pollicis brevis insertion
Proximal phalanx of thumb
62
Extensor pollicis brevis innervation
Posterior interosseous (radial)
63
Extensor pollicis brevis action
Extends thumb
64
Extensor pollicis longus origin
Ulna (distal shaft) | Interosseous membrane
65
Extensor pollicis longus insertion
Distal phalanx of thumb
66
Extensor pollicis longus innervation
Posterior interosseous (radial)
67
Extensor pollicis longus action
Extends thumb
68
Extensor indicis origin
Ulna (distal shaft) | Interosseous membrane
69
Extensor indicis insertion
Digit 2 (extensor expansion)
70
Extensor indicis innervation
Posterior interosseous (radial)
71
Extensor indicis action
Extends index finger
72
Supinator origin
Common extensor tendon (lateral epicondyle)
73
Supinator insertion
Radius
74
Supinator innervation
Radial nerve (deep branch)
75
Supinator action
Supinates forearm | Biceps is stronger
76
Radial nerve in forearm
Anterior to lateral epicondyle Sensory/cutaneous: Arm - post cutaneous of arm Forearm - posterior cutaneous of forearm Hand - superficial branch Muscles: Radial -> triceps, brachioradialis, carpi radialis Through supinator Deep -> digitorum, carpi ulnaris, digiti minimi Posterior interosseous -> pollicis, indicis
77
Median nerve in forearm
Cubital fossa (anterior to medial epicondyle) Sensory/cutaneous: Lateral palm, 2-4 digits Muscles: - > superficial (pronator teres, superficialis, palmaris longus, carpi radialis) - > anterior interosseous -> deep (digitorum profundus, pollicis, pronator quad)
78
Ulnar nerve in forearm
Posterior to medial epicondyle Cutaneous - medial hand, 5th+ 1/2 digit? dorsal cutaneous branch -> dorsal hand Flexor carpi ulnaris Medial half of digitorum profundus
79
Arteries of forearm
Brachial -> radial and ulnar Radial (superficial) - beneath brachioradialis ``` Ulnar (deep) - deep to pronator teres -> hand with ulnar nerve common interosseous branch -> anterior interosseous posterior interosseous ```
80
Carpal tunnel
Flexor retinaculum over carpals Contains median nerve Ulnar nerve and artery are superficial

HAE (5 decks)

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