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Anatomy I > Muscles of the Forearm > Flashcards

Muscles of the Forearm Flashcards

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1
Q

what forearm muscles are in the ANTERIOR compartment of the forearm (superficial, intermediate, and deep layers)

A

SUPERFICIAL:
- pronator teres
- flexor carpi radialis
- palmaris longus
- flexor carpi ulnaris

INTERMEDIATE:
- flexor digitorum superficialis

DEEP:
- flexor digitorum profundus
- flexor pollicis longus
- pronator quadratus

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2
Q

ATTACHMENTS for pronator teres

A

medial epicondyle & ulnar coronoid process to lateral aspect of the radius

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3
Q

segmental innervation of pronator teres

A

C6-C7

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4
Q

INNERVATIONS of pronator teres

A

median nerve

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5
Q

ACTIONS of pronator teres

A

pronates & flexes forearm

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6
Q

ATTACHMENTS of flexor carpi radials

A

medial epicondyle to palmar aspect of the base of the 2nd metacarpal

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7
Q

segmental innervation of flexor carpi radialis

A

C6-C8

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8
Q

ACTIONS of the flexor carpi radialis

A

flexes & abducts hand at wrist (radial deviation) & may assist with pronation of forearm & flexion of the elbow

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9
Q

INNERVATIONS of the flexor carpi radialis

A

median nerve

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10
Q

ATTACHMENTS for palmaris longus

A

medial epicondyle to palmar aponeurosis

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11
Q

segmental innervation of palmaris longs

A

C7-C8

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12
Q

INNERVATIONS of palmaris longus

A

median nerve

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13
Q

ACTIONS of palmaris longus

A

flexes hand at wrist, tenses palmar fascia

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14
Q

ATTACHMENTS of flexor carpi ulnaris

A

from medial epicondyle & proximal ulnar shaft to pisiform

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15
Q

segmental innervation of flexor carpi ulnaris

A

C7-T1

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16
Q

INNERVATIONS of flexor carpi ulnaris

A

ulnar nerve

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17
Q

ACTIONS of flexor carpi ulnaris

A

flexes & adducts hand at wrist, ulnar deviation & assists in flex of the elbow

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18
Q

ATTACHMENTS of flexor digitorum superficialis

A

medial epicondyle to the sides of the middle phalanges of digits 2-5

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19
Q

segmental innervation of flexor digitorm superficialis

A

C7-T1

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20
Q

ACTIONS of flexor digitorum superficialis

A

flexes digits & hand at wrist

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21
Q

INNERVATION of flexor digitorum superficialis

A

median nerve

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22
Q

ATTACHMENTS of flexor digitorum profundus

A

anterior proximal 2/3rds of ulna & interosseous membrane to the base of the distal phalanges 2-5s

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23
Q

segmental innervation of flexor digitorum profundus

A

C7-T1

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24
Q

INNERVATIONS of flexor digitorum profundus

A

median (digits 2-3) & ulnar (digits 4-5)

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25
ACTIONS of flexor digitorum profundus
flexes digits 2-5, flexes hand at wrist
26
ATTACHMENTS of flexor pollicis longus
anterior surface of radius & interosseous membrane to the base of the distal phalanx of the thumb
27
segmental innervation of flexor pollicis longus
C7-T1
28
ACTIONS of flexor pollicis longus
flexes thumb
29
INNERVATIONS of flexor pollicis longus
median nerve
30
ATTACHMENTS of pronator quadratus
anterior surface of distal ulna to anterior surface of distal radius
31
segmental innervation of pronator quadratus
C8-T1
32
INNERVATION of pronator quadratus
median nerve
33
what forearm muscles are in the POSTERIOR compartment of the forearm (superficial and deep layers)
SUPERFICIAL: - brachioradialis - extensor carpi radialis longus - extensor carpi radialis brevis - extensor digitorum - extensor digiti minimi - extensor carpi ulnaris DEEP: - supinator - abductor pollicis longus - extensor pollicis longus - extensor pollicis brevis - extensor indicis
34
ATTACHMENTS of brachioradialis
lateral supracondylar ridge of humerus to distal radius lateral to the styloid process
35
segmental innervation of BRACHIORADIALIS
C5-C6
36
INNERVATION of brachioradialis
radial nerve
37
ACTIONS of brachioradialis
flexes elbow
38
ATTACHMENTS of extensor carpi radialis longus
from lateral supracondylar ridge to base of 2nd metacarpal
39
segmental innervation of extensor carpi radialis longus
C6-C8
40
INNERVATION of extensor carpi radialis longus
radial nerve
41
ACTIONS of extensor carpi radialis longus
extends & abducts hand at wrist (radial deviation) & assists with flexion of the elbow
42
ATTACHMENTS of extensor carpi radialis brevis
lateral epicondyle of humerus to base of the 3rd metacarpal
43
segmental innervation of extensor radialis brevis
C6-C8
44
INNERVATION of extensor carpi radialis brevis
radial nerve
45
ACTIONS of extensor carpi radialis brevis
extends and abducts hand at wrist (radial deviation)
46
ATTACHMENTS of extensor carpi ulnaris
lateral epicondyle to the base of the 5th metacarpal
47
segmental innervation of extensor carpi ulnaris
C6-C8
48
INNERVATION of extensor carpi ulnaris
radial nerve
49
ACTIONS of extensor carpi ulnaris
extends and adducts hand at wrist (ulnar deviation)
50
ATTACHMENTS of extensor digitorum
lateral epicondyle to extensor expansions of digits 2-5
51
segmental innervation of extensor digitorum
C6-C8
52
INNERVATION of extensor digitorum
radial nerve
53
ACTIONS of extensor digitorum extends phalanges
extends phalanges (MCP, IP) & hand at wrist
54
ATTACHMENTS of extensor digiti minimi
lateral epicondyle to digital expansion of the 5th digit
55
segmental innervation of extensor digiti minimi
C7-C8
56
INNERVATION of extensor digiti minimi
radial nerve
57
ACTIONS of extensor digiti minimi
extends 5th digit
58
ATTACHMENTS of supinator
from the lateral epicondyle, supracondylar ridge of ulna, radial collateral ligament, to the lateral surface of proximal radius
59
segmental innervation of supinator
C5-C6
60
ACTOINS of supinator
supinates forearm
61
INNERVATION of supinator
radial nerve
62
ATTACHMENTS of abductor pollicis longus
from proximal posterior radius/ulna and interosseous membrane to base of 1st metacarpal and trapezium
63
segmental innervation of abductor pollicis longus
C6-C8
64
ACTIONS of abductor pollicis longus
abducts and extends thumb at CMC joint and abducts hand at wrist (radial deviation)
65
ATTACHMENTS of extensor pollicis brevis
posterior radius and interosseous membrane to base of 1st proximal metacarpal
66
segmental innervation of extensor pollicis brevis
C6-C8
67
ACTIONS of extensor pollicis brevis
extends thumb at MCP joint and extends and abducts thumb at CMC joint
68
INNERVATION of extensor pollicis brevis
radial nerve
69
ATTACHMENTS of extensor pollicis longus
middle 1/3 of posterior ulna and interosseous membrane to the base of 1st distal phalanx
70
segmental innervation of extensor pollicis longus
C6-C8
71
ACTIONS of extensor pollicis longus
extends thumb (at CMC, MCP, and IP joints)
72
INNERVATION of extensor pollicis longus
radial nerve
73
ATTACHMENTS of extensor indicis
posterior surface of ulna and interosseous membrane to digital expansion of 2nd digit
74
segmental innervation of extensor indicis
C7-C8
75
ACTIONS of extensor indicis
extends 2nd digit (MCP and IP joints)
76

Anatomy I (6 decks)

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