B6-004 Forearm and Hand Flashcards
1
Q
boundaries of the cubital fossa [5]
A
-pronator teres
-line between medial and lateral epicondyles
-brachioradialis
-brachialis
-supinator
2
Q
vein used for blood draws in lab
A
median cubital
3
Q
biceps attaches to […] of radius
A
radial tuberoscity
4
Q
the bicipital aponeurosis protects what two structures?
A
brachial artery
median nerve
5
Q
at the cubital fossa, the brachial artery branches into […] and […]
A
ulnar a.
radial a.
6
Q
at the cubital fossa, radial nerve will branch into
A
deep branch-supinator
superficial branch- dorsum of hand
7
Q
nerve that runs behind the medial epicondyle
A
ulnar
8
Q
the tendon of the flexor digitorum superficialis inserts onto the […]
A
middle phalynx
9
Q
the flexor digitorum superficialis flexes the […] IP joint
A
proximal
10
Q
what three muscles run through the flexor retinaculum?
A
flexor digitorum profundus
flexor pollicis longus
flexor digitorum superficialis
11
Q
which compartment of the forearm contains flexors and pronators?
A
anterior
12
Q
as the radial artery runs lateral to the wrist, it lies next to […] where you would take a radial pulse
A
flexor carpi radialis tendon
13
Q
the ulnar artery branches into the […] which supplies the posterior compartment of the arm
A
posterior interosseus artery
14
Q
the ulnar artery branches into the […] which supplies the anterior compartment of the arm
A
anterior interosseus artery
15
Q
the flexor carpi radialis, flexor carpi ulnaris, and pronator teres all attach at the […] of the humerus
A
medial epicondyle
16
Q
what branch of the radial nerve does sensory to the dorsum of the hand?
A
superficial
17
Q
what branch of the radial nerve enters the supinator muscle?
A
deep branch
18
Q
innervates the deep anterior compartment of the forearm
**flexor digitorum profundus, flexor pollicis longus, pronator quadratus
A
anterior interosseous branch of the median nerve
19
Q
supplies sensation to the majority of the palm
A
palmar branch of the median nerve
20
Q
why don’t you lose palmar sensation in carpal tunnel syndrome?
A
palmar branches of the median nerve lies anterior to the flexor retinaculum
21
Q
where can the ulnar nerve become entrapped causing cubital tunnel?
A
flexor carpi ulnaris
22
Q
supplies sensation to the dorsum of the medial hand
A
dorsal branch of ulnar nerve
23
Q
the posterior compartment is generally attached to the […] epicondyle, except for […]
A
lateral epicondyle
extensor carpi radialis
24
Q
where does extensor carpi radialis attach?
A
suprachondylar area
25
extensors and supinators lie in which compartment?
posterior
26
lateral epicondylitis is caused by repetitive use of [...] muscles
extensor
27
pain over lateral epicondyle that radiates down posterior surface of the arm
lateral epicondylitis
28
pain is felt with opening doors or lifting a glass
lateral epicondylitis
29
medial epicondylitis is caused by repetitive use of the [...] muscles
flexors
30
activity associated with medial epicondylitis
pitching
31
activity associated with lateral epicondylitis
tennis
32
pain over medial epicondyle that radiates down the anterior surface of the arm
medial epicondylitis
33
pain is felt when flexing the wrist or squeezing a ball
medial epicondylitis
34
avulsion of extensor digitorum tendon
mallet/baseball finger
35
individual cannot extend distal IP joint
mallet/baseball finger
36
pain and tenderness in proximal aspect of anterior forearm and abnormal sensation in the palm
pronator syndrome
37
cubital tunnel syndrome is the entrapment of ulnar nerve by [....]
flexor carpi ulnaris
38
pain and tenderness in the medial forearm and little finger, and abnormal palm sensation
cubital tunnel
39
proximal row of carpals (L to M)
scaphoid
lunate
triquetrum
pisiform
So Long To Pinky
40
distal row of carpals (M to L)
hamate
capitate
trapezoid
trapezium
Here Comes The Thumb
41
sesamoid bone that develops in the tendon of the flexor carpi ulnaris
pisiform
42
bones of the radio-carpal joint
scaphoid
lunate
triquetrum
radius
43
palmar aponeurosis helps with [...]
grip
44
palmaris longus attaches distally to
palmar aponeurosis
45
if there was a puncture would to the 5th digit synovial sheath, where could the infection spread?
thumb, hand
even through carpal tunnel and up forearm
46
if there was a puncture wound to the 3rd digit synovial sheath, where could the infection spread?
nowhere, stays local
**2,3,4 have individual sheaths
47
caused by disparity in size of the flexor tendons vs the retinacular pulley system
trigger finger (stenosing flexor tenosynovitis)
48
progressive fibrosis of the palmar fascia
dupuytren's contracture
49
muscles of the thenar eminence [4]
opponens pollicis
abductor pollicis brevis
flexor pollicis brevis
adductor pollicis
OAAF
50
the thenar eminence is innervated by [2]
recurrent branch of the median
**deep FPB and adductor pollicis are innervated by deep branch of ulnar
51
what muscles of the thenar eminence are innervated by the deep branch of the ulnar nerve?
flexor pollicis brevis
adductor pollicis
52
the muscles of the hypothenar eminence [3]
opponens digiti
abductor digiti minimi
flexor digit minimi
OAF
53
the hypothenar eminence is innervated by
deep branch of ulnar nerve
54
the 1st and 2nd lumbrical are innervated by
median
55
the 3rd and 4th lumbricals are innervated by
deep branch of ulnar
56
the palmar and dorsal interossei are innervated by
deep branch of ulnar
57
lumbricals are attached to the [...]
flexor digitorum profundus
58
[...] interossei abduct
dorsal
**Dorsal ABduct (DAB)
59
[...] interossei adduct
palmar
*Palmar ADuct (PAD)
60
the ulnar a. terminates as [...]
superficial palmar arch
61
the superficial palmar arch of the ulna artery extend to the [...] crease of your hand
proximal
62
where should you do a finger stick?
the side of digit. that's where proper palmar digital arteries lie
63
the radial artery goes [...] to the thumb
posterior
64
what artery runs in the anatomical snuff box?
radial
**radial goes behind the thumb
65
the radial a. terminates as
deep palmar arch
66
princeps pollici and radial indicis are branches of the [...] artery
radial
67
ulnar artery + superficial branch from radial gives you
superficial palmar arch
68
radial a. + deep branch of ulnar a. gives you
deep palmar arch
69
provides motor innervation to the intrinsic muscles of hand
deep branch of ulnar
70
cutaneous sensation to the medial hand on both palmar and dorsal side, half of digit 4 and all of digit 5
ulnar n.
71
cutaneous sensation to the anterior lateral hand and to digits 1-4.5 and nail beds
median
72
cutaneous sensation to lateral-dorsal aspect of:
-hand
-thumb
-proximal portion of digits 1-4.5
superficial branch of radial nerve
73
what muscles are involved in extension of thumb [3]
extensor pollicis brevis
extensor pollicis longus
abductor pollicis longus
74
what muscles are involved in flexion of thumb [2]
flexor pollicis brevis
flexor pollicis longus
75
what muscles are involved in abduction of thumb [2]
abductor pollicis longus
abductor pollicis brevis
76
what muscle is involved in adduction of thumb
adductor pollicis
77
what muscle is involved in opposition of thumb
opponens pollicis
78
lumbricals and interossei insert into
extensor "hood" (dorsal)
**comes off extensor digitorum
79
lumbricals and interossei [...] the MCP and [...] the DIP/PIPs
flex MCP
extend DIP/PIP
80
mallet finger rips the [...]
extensor hood
**comes off extensor digitorum
81
disruption of the terminal slip of the extensor tendon at the DIP joint
mallet finger
82
mallet finger is caused by [...] of the finger
hyperflexion
83
rupture of the flexor digitorum profundus at the attachment on distal phalanx
jersey finger
84
jersey finger is caused by [...] of the finger
hyperextension
85
muscles going through carpal tunnel
flexor digitorum superficialis
flexor digitorum profundus
flexor pollicis longus
86
long standing carpal tunnel will result in atrophy of the [...]
thenar eminence
87
guyon's canal is made up of [...] and [...] bones
hamate and pisiform
88
what neurovascular structures pass through Guyon's canal?
ulnar a.
ulnar n.
89
Guyon's canal only affects the [...] portion of the hand
anterior
**palmar and dorsum spared
90
provides sensory to fifth digit and half of 4th
superficial terminal branch of ulnar n.
91
boundaries of anatomical snuffbox [3]
extensor pollicis longus
extensor pollicis brevis
abductor pollicis longus
92
contents of anatomical snuffbox [5]
radial styloid
scaphoid
trapezium
base of first metacarpal
radial artery
93
you can check for point tenderness of scaphoid fracture by pressing on the
anatomical snuffbox
94
inflammation of abductor pollicis longus and extensor pollicis brevis cause [...]
De Quervain Tenosynovitis
95
pain with thumb extension (grabbing groceries, carrying child carseat)
De Quervain Tenosynovitis
96
how to test for De Quervain Tenosynovitis?
pain illicited when pressing the thumb down and flexing
97
most common fracture of carpals
scaphoid
98
why is the scaphoid at risk of necrosis when fractured?
it gets a retrograde blood supply from the radial a.
99
point tenderness in the anatomical snuffbox suggests a fracture in
scaphoid
100
can cause loss of thumb opposition
carpal tunnel
101
weakness or inability to flex or oppose the thumb indicates damage to
median
102
decreased strength during extension of the thumb indicates damage to
radial nerve
103
atrophy of dorsal interosseus muscles indicates damage to
ulnar nerve
104
loss of sensation to the skin covering the medial aspect of hand indicates damage to the
ulnar nerve
105
the ulnar artery originates in the
cubital fossa
106
the ulnar artery branches from the
brachial
107
what artery is highly subject to compression in anterior compartment syndrome of the forearm?
ulnar
108
the posterior interosseus v. continues into the deep branch of the radial v. and enters the [...] compartment
posterior
109
nerve that is just medial to the brachial artery
median
110
the synovial sheaths of digits [...] do not communicate with other synovial sheaths
2-4
111
provides supination and flexion of the forearm
biceps brachii
112
label A-F
a. capitulum of humerus
b. radial tuberoscity
C. trochlea of humerus
D. olecranon
E. medial epicondyle
F. head of radius
113
site of origin for the common flexor tendons and pronator teres
medial epicondyle
114
where triceps brachii attach distally
olecranon
115
damage to the [...] nerve will result in loss of wrist extension
radial
116
weakness in pronation may be caused by damage to the
median or anterior interosseus
117
sensory loss over the ventral aspect of the thumb would result from damage to the [...] nerve
median
118
inability to oppose thumb results from damage to the [...] nerve
median
119
inability to abduct fingers results from damage to the
ulnar
120
artery that supplies the posterior compartment of the forearm
posterior interosseus
121
brachial artery branches into [..] and [...] at cubital fossa
radial and ulnar
122
the radial and ulnar arteries are located in the [...] compartment and terminate in the hand
anterior
123
the deep artery of the arm is located in the [...] compartment and travels with [...]
posterior
radial nerve
124
loss of sensation over medial hand and entire 5th digit is due to damage in
ulnar nerve
125
loss of finger abduction and adduction is due to damage in the
ulnar nerve
126
weakness of flexion in the distal IP joint of the index would be due to damage to the
lateral part of flexor digitorum profundus
127
lateral part of flexor digitorum profundus is innervated by
anterior interosseus
128
weakness of pronation results from damage to the
median nerve
129
weakness of wrist abduction results from damage to [2 nerves]
radial nerve- ECRL or ECRB
or median nerve- FCR
130
weakness of wrist [...] is caused by damage to the radial nerve
extension
