MSK 5 - Upper Limb Flashcards
1
Q
what are the 4 regions of the upper limb
A
shoulder, arm, forearm, hand
2
Q
whats another name for the arm
A
brachium
3
Q
whats another name for the forearm
A
antebrachium
4
Q
what is the general function of the upper limb
A
ability to grasp and conduct fine motor skils
5
Q
name the terminal branches of the brachial plexus
A
musculocutaneous n, axillary n, radial n, median n, ulnar n, long thoracic n
6
Q
what is the pectoral girdle
A
scapula, clavicle, sternum
transition between axial and appendicular skeleton
allows for free movement of the upper limb
7
Q
what are the four important landmarks of the scapula
A
coracoid process: shrek horn on anterior surface
glenoid cavity: depression on superior lateral surface
spine: ridge on posterior surface
acromion: point of shoulder on lateral posterior surface
8
Q
what is the intertubercular sulcus of the humerus
A
depression between the two tubercle of the proximal humerus
9
Q
where are the greater and less tubercle of the humerus located
A
proximally, greater = lateral, lesser = anterior
10
Q
what is the difference between the anatomical and surgical neck of the humerus
A
anatomical = boundary of head
surgical = at metaphysis
11
Q
what are the three joints of the pectoral girdle
A
glemohumeral, acromioclavicular, sternoclavicular
12
Q
what type of joint is the glemohumeral
A
ball and socket, synovial
13
Q
what type of joint is the acromioclavicular
A
plane, synovial
14
Q
what type of joint is the sternoclavicular
A
saddle, synovial
15
Q
what articulates at the glenohumeral joint
A
head of humerus, glenoid cavity of scapula
16
Q
what articulates at the sternoclavicular joint
A
sternal end of clavicle, clavicular notches of manubrium
17
Q
what articulates at the acromioclavicular joint
A
acromion of scapula, acromial end of clavicle
18
Q
what are the possible movement of the scapula / pectoral girdle
A
elevation, depression, protraction, retraction, upward rotation, downward rotation
19
Q
what is the glenoid labrum
A
fribrocartilage, deepend the glenoid cavity slightly
20
Q
what is the purpose of the rotator cuff mm
A
main source of stability of the glenohumeral joint, encircle the joint all except inferiorly
21
Q
which joint is dislocated in shoulder dislocation
A
glenohumeral
22
Q
which joint is dislocated in shoulder separation
A
acromioclavicular
23
Q
attachments of the anterior and posterior axio-appendicular muscles
A
axial skeleton
appendicular skeleton
24
Q
innervation of the anterior and posterior axio-appendicular muscles
A
branches of bracial plexus
25
attachment of pectoralis major m
clavicle, sternum, costal cartilages
humerus
26
action of pec major m
flexion and extension at shoulder
adduction and medial rotation at shoulder
27
innervation of pec major m
brachial plexus
28
attachment pectoralis minor m
ribs
corachoid process of scapula
29
two heads of pec major
clavicular, sternal
30
action of pec minor m
stabilize scapula (move inferior and anterior)
31
innervation of pec minor m
brachial plexus
32
attachment serratus anterior m
ribs
medial border of scapula
33
action of serratus anterior m
protraction of scapula
superior rotation of scapula
34
innervation of serratus anterior m
long thoracic n
35
attachment of trapezius m
external occipital protuberance and spinous processes of vertebrae
spine of scapula, acromion, clavicle
36
action of trapezius m
elevation, depression, retraction, superior rotation scapula
37
innervation trapezius m
CN XI accessory n
38
attachment latissimus dorsi m
spinous process of vertebrae and sacrum iliac crest
intertubercular sulcus of humerus
39
action of latissimus dorsi m
extension, adduction, medial rotation at shoulder
40
innervation of latissimus dorsi m
brachial plexus
41
what muscles attach to the medial portions of the clavicle
sternocleidomastoid, pec major
42
what muscles attach to the lateral portion of the clavicle
trapezius
43
what are the attachments of the intrinsic muscles of the shoulder
scapula
humerus
44
innervation of the intrinsic shoulder muscles
branches of bracial plexus
45
attachment of deltoid m
clavicle, acromion, spine of scapula
humerus
46
action of deltoid m
flexion, extension, abduction, medial rotation, lateral rotation at shoulder
47
innervation deltoid m
axillary n
48
4 rotator cuff muscles
supraspinatus, supscap, infraspinatus, teres minor
49
attachment of supraspinatus m
posterior scapula above spine
greater tubercle
50
action of supraspinatus m
abduction at shoulder
51
innervation of supraspinatus
brachial plexus
52
attachment of infraspinatus and teres minor m
posterior scapula below spine
greater tubercle of humerus
53
action of infraspinatus and teres minor m
lateral rotation at shoulder
54
innervation of infraspinatus and teres minor m
brachial plexus
55
attachment of subscapularis m
anterior scapula
lesser tubercle of humerus
56
action of subscapularis m
medial rotation at shoulder
57
innervation of subscapularis m
brachial plexus
58
what are the two bursa of the rotator cuff
subacromial (subdeltoid) and subscapular
59
what is the purpose of the subacromial bursa
facilitates movement of supraspinatus tendon
60
function of subscapular bursa
facilitates movement between neck of scapula and subscapularis tendon, communicates with joint cavity
61
which nerve courses around the surgical neck of the humerus
axillary n
62
what muscle is innervated by axillary n
deltoid m
63
what and where is the olecranon fossa
depression on posterior distal humerus
64
what and where are the medial and lateral epicondyles of the humerus
medial and lateral sides of distal humerus
65
where and what is the capitulum
depression on the anterior, lateral, distal humerus
66
what and where is the trochlea
bowties shaped depression on anterior, medial, distal humerus
67
what and where is the radial tuberosity
bump of medial anterior proximal radius
68
what and where is the olecranon
head of proximal ulna (posterior)
69
what and where is the trochlear notch
notch on lateral proximal ulna
70
what and where is the coronoid process
below trochlear notch on proximal ulna
71
what and where is the radial notch
indent below coronoid process where radius sits
72
which is medial and which is lateral, radius and ulna
ulna medial, radius lateral
73
which is longer and stabilizing, radius or ulna
ulna
74
what are the three joints in the elbow
humero-radial, humero-ulna, proximal radio-ulnar
75
what type of joint is the humero-radial
hinge/pivot
76
what type of joint is the humero-ulnar
hinge
77
what type of joint is the proximal radio-ulnar
pivot
78
what articulates at the humero-radial
capitulum of humerus and head of radius
79
what articulates at the humero-ulnar
trochlea of humerus and trochlear notch of ulna
80
what articulates at the proximal radio-ulnar
head of radius and radial notch of ulna
81
what are the 3 ligaments that support the elbow joint complex
radial collateral (attaches to anular), anular (completely encircles head of radius), ulnar collateral (most stable)
82
what movements are possible at the elbow
supination pronation flexion extension
83
what bone moves in pronation of the elbow
radius
84
what is the action of the anterior compartment of the arm
flexion of shoulder and elbow
85
innervation of anterior compartment of the arm
musculocutaneous n
86
attachment of biceps brachii m
scapula
radial tuberosity
87
action of biceps brachii m
flexion at shoulder and elbow, supination
88
innervation of biceps brachii m
musculocutaneous n
89
attachment of brachialis m
humerus
coronoid process of ulna
90
action of brachialis m
flexion at elbow
91
innervation of bracialis m
musculocutaneous n
92
action of muscles in posterior compartment of arm
extension of elbow and shoulder
93
innervation of posterior compartment of arm
radial n
94
attachment of triceps brachii m
long head: scapula
medial and lateral heads: humerus
olecranon of ulna
95
action of triceps brachii m
extension shoulder and elbow
96
innervation of triceps brachii m
radial n
97
what and where is the ulnar notch
indent on distal radius that meets the ulnar
98
what are the styloid processes
points at ends of distal radius and ulna
99
what are the 8 carpal bones
sphenoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, hamate
100
what are the two joints of the write
radiocarpal joint, distal radio-ulnar joint
101
what kind of joint is radiocarpal
condyloid
102
what kind of joint is distal radio-ulnar
pivot
103
what articulates at radiocarpal joint
distal radius, proximal row of carpals (expect pisiform)
104
what articulates at distal radio-ulnar joint
ulnar notch of radius, head of ulna
105
what ligaments support the wrist
radial and ulnar collateral
106
what is the articular disc of the radio-ulnar joint
connects distal radius and ulna
107
what movements are possible at the wrist
flex, extend, adduct, abduct, supination, pronation
108
what is the pollex
thumb
109
how many metacarpals are there
5
110
how many proximal phalanges are there
5
111
how many middle phalanges are there
4
112
how many distal phalanges are there
5
113
what are the 4 types of joints in the hand
carpometacarpal
metacarpophalangeal
proximal interphalengeal
distal interphalengeal
114
what kind of joint is carpometacarpal
1 saddle, 2-5 plane
115
what kind of joint is metacarpophalangeal
condyloid
116
what kind of joint is interphalengeal
hinge
117
what movements are possible by digits 2-5
flex extend adduct and abduct
118
what movements are possible by digit 1
adduction abduction exten flex opposition and reposition (bring digits 1 and 5 together)
119
how many phalanges do digits 2-5 have
3
120
how many phalanges does digits 1 have
2
121
what is the proximal attachment of the anterior compartment of the forearm
medial epicondyle of humerus
122
action anterior compartment of forearm
flexion of wrist and fingers, pronation
123
innervation of anterior compartment of forearm
median or ulnar n
124
is pronator teres superficial intermediate or deep
superficial
125
is flexor carpi radialis superficial intermediate or deep
superficial
126
is flexor carpi ulnaris superficial intermediate or deep
superficial
127
is flexor digitorum superficialis superficial intermediate or deep
intermediate
128
is flexor digitorum profundus superficial intermediate or deep
deep
129
is pronator quadratus superficial intermediate or deep
deep
130
attachment of pronator quadratus m
ulna
radius
131
action of pronator quadratus m
pronation
132
innervation of pronator quadratus m
median n
133
attachment of flexor digitorum profundus m
ulna distal
phalanges digits 2-5
134
action of flexor digitorum profundus m
flexion of MCP, PIP, DIP
135
innervation of flexor digitorum profundus m
median n (2-3), ulnar n (4-5)
136
attachment of flexor digitorum superficialis m
medial epicondyle of humerus
middle phalanges of digits 2-5
137
action of flexor digitorum superficialis m
flexion of MCP and PIP
138
innervation of flexor digitorum superficialis m
median n
139
attachment of flexor carpi ulnaris m
medial epicondyle of humerus
metacarpals
140
action of flexor carpi ulnaris m
flexion and adduction of wrist
141
innervation of of flexor carpi ulnaris m
ulnar n
142
attachment of flexor carpi radialis m
medial epicondyle of humerus
metacarpals
143
action of flexor carpi radialis m
flexion and abduction at wrist
144
innervation of flexor carpi radialis m
median n
145
attachment of pronator teres m
medial epicondyle of humerus
radius
146
action of pronator teres m
pronation
147
innervation of pronator teres m
median n
148
attachment of posterior compartment of forearm (proximal)
lateral epicondyle of humerus
149
action of posterior compartment of forearm
extension of wrist and digits, supination
150
innervation of posterior compartment of forearm
radial n
151
is bracioradialis m superficial intermediate or deep
superficial
152
is extensor carpi radialis longus superficial intermediate or deep
superficial
153
is extensor digitorum superficial intermediate or deep
superficial
154
is extensor carpi ulnaris superficial intermediate or deep
superficial
155
is supinator superficial intermediate or deep
deep
156
attachment of supintor m
humerus and ulna
radius
157
action of supintor m
supination
158
innervation of supintor m
radial n
159
attachment of extensor carpi ulnaris m
lateral epicondyle of humerus
metacarpals
160
action of extensor carpi ulnaris m
extension and adduction at wrist
161
innervation of extensor carpi ulnaris m
radial n
162
attachment of extensor digitorum m
lateral epicondyle of humerus
digits 2-5
163
action of extensor digitorum m
extension of digits 2-5
164
innervation of extensor digitorum m
radial n
165
attachment of extensor carpi radialis longus m
lateral epicondyle of humerus
metacarpals
166
action of extensor carpi radialis longus m
extension and abduction at wrist
167
innervation of extensor carpi radialis longus m
radial n
168
attachment of brachioradialis m
humerus
radius
169
action of brachioradialis m
flexion at elbow (weak)
170
innervation of brachioradialis m
radial n
171
what nerve courses the humurus mid shaft
radial n
172
what muscle groups does teh radial nerve innervate
posterior arm and forearm
173
what is the roof of the carpal tunnel
transverse carpal ligament
174
what is the floor of the carpal tunnel
carpal bones
175
what does the carpal tunnel contain
flexor tendons and tendon sheaths
176
action of the thenar mm
abduction flexion opposition of digit 1
177
innervation of the thenar mm
median n
178
action of the hypothenar mm
abduction flexion and opposition of digit 5
179
innervation of hypothenar mm
ulnar n
180
action of lumbrical and interosseous mm
abduction and adduction of digits, shaping hand
181
innervation of lumbrical and interosseous mm
ulnar n
182
what nerve passes through the carpal tunnel
median n
183
which nerve passes on the medial epicondyle
ulnar n
