upper extremity prelab Flashcards
(81 cards)
1
Q
A
acromion process
2
Q
A
coracoid process
3
Q
A
glenoid cavity
4
Q
A
infragelnoid tubercle
5
Q
A
subscapular fossa
6
Q
A
greater tubercle
7
Q
A
lesser tubercle
8
Q
A
surgical neck
9
Q
A
radial groove
10
Q
A
intertubercular sulcus
(biciptial groove)
11
Q
A
anatomical neck
12
Q
A
deltoid tuberosity
13
Q
A
coronoid fossa
14
Q
A
radial fossa
15
Q
A
trochlea
16
Q
A
olecranon fossa
17
Q
A
lateral epicondyle
18
Q
A
capitulum
19
Q
A
olecranon process
20
Q
A
trochlear notch
21
Q
A
ulnar tuberosity
22
Q
A
coronoid process
23
Q
A
radial tuberosity
24
Q
latissimus dorsi (action and innervation)
A
adduction, medial rotaion, extension of arm
thoracodorsal nerve
25
trapezius
action and innervation
elevate/retract/depress shoulder, helps rotate the scapula to abduct/raise the arm above 90 degrees
CN XI (acessory nerve)
26
deltoid
action and innervation
abducts arm 30-90 degrees
axillary nerve
27
pectoralis major and minor
actions and innervation
flex arm at shoulder, adduct and medal rotate arm, protract and depress scapula
medial/lateral pectoral nerves
28
serratus anterior
action and innervation
protraction, together with trapezius, helps rotate scapula to abduct/raise arm above 90 degrees
long thoracic
29
rhomboid major/minor
action and innervation
retract scapula
dorsal scapular nerve
30
levator scapula
action and innervation
dorsal scapular nerve
31
list the muscles that make up the rotator cuff
supraspinatus
infraspinatus
subscapularis
teres minor
32
supraspinatus
action and innervation
initiates abduction of the arm (0-30 degrees)
suprascapular nerve
33
infraspinatus
action and innervation
lateral rotation of arm
suprascapular nerve
34
subscapularis
action and innervation
medial rotation of the arm
superior and inferior (upper and lower) subscapular nerves
35
teres minor
action and innervation
lateral rotation of arm
axillary nerve
36
teres major
action and innervation
medial rotation, extention of the arm
inferior (lower) subscapular nerve
\*\*NOT part of the rotator cuff
37
function of the rotator cuff
support glenohumeral joint (shoulder joint)
38
what type of joint is the glenohumeral (shoulder) joint
synovial (diarthrosis)
39
muscles and innervation of brachium anterior compartment
bicep brachii
coracobrachialis
brachialis
all innervated by musculocutaneous nerve (\*\* susceptible to injury by blunt force trauma)
40
coracobrachialis action
flexes and adducts arm at shoulder
41
biceps brachii action
flexes arm at shoulder (minor); flexes forearm (at elbow), supinates forearm
42
what nerves contribute to the bicep reflex
C5 and C6
43
muscles of posterior compartment of brachium and innervation
triceps brachii and anconeus
radial nerve
44
triceps brachii action
long head: adducts arm, extends shoulder, elbow extension
lateral head: elbow extension
medial head: elbow extension
45
anconeus action
elbow/forearm extension
46
nerves incorporated in tricep reflex
C7, C8
47
superficial layer of anterior forearm muscles
pronator teres
flexor carpi radialis
palmaris longus
flexor carpi ulnaris
48
middle layer of anterior forearm
flexor digitorum superficialis
49
deep layer of anterior forearm
flexor pollicis longus
flexor digitorum profundus
pronator quadratus
50
innervation of anterior forearm
all muscles are innervated by the median nerve
except: flexor carpi ulnaris is innervated by ulnar nerve and flexor digitorum profundus is innervated 50% by median (on lateral half) and 50% by ulnar (on medial half)
51
origin and insertion of superficial layer anterior forearm muscles
action
origin: medial epicondyle
insertion: carpals and metacarpals
all those that cross the wrist flex wrist and ab or adduct the wrist depending on their insertion
pronator teres does not cross the wrist, it inserts on lateral radius and pronates the forearm/hand
52
middle layer of anterior forearm origin and insertion and action
(only muscle is the flexor digitorum superficialis)
origin: medial epicondyle and proximal radius
insertion: middle phalanges of digits 2-5
action: flexes digits at proximal inter-phalangeal (PIP) joint
53
deep layer of the anterior forearm origin, insertion, and action
origin: radius, ulna and interosseous membrane
insertion: distal phalanges
action: flexor pollicis longus and flexor digitorum profundus flex the digits at distal inter-phalangela (DIP) joint
pronator quadratus inserts on the distal radius and therefore pronates the forearm and hand
54
list muscles in superficial posterior forearm lateral to medial
brachioradialis
extensor carpi radialis longus
extensor carpi radialis brevis
extensor digitorum
extensor digiti minimi
extensor carpi ulnaris
55
list deep muscles in posterior forearm lateral to medial
supinator
abductor pollicis longus
extensor pollicis brevis
extensor pollicis longus
extensor indicis
56
innervation of posterior forearm
radial nerve
57
origin, insertion, and action of superficial layer posterior forearm
origin: lateral epicondyle
insertion: carpals and metacarpals
those crossing wrist joint extend the wrist and ad or abduct depending on location
extensor digitorum and digiti minimi extend the fingers
brachioradialis insters on styloid process of radius and flexes the forearm
58
wrist drop/saturday night palsy
radial nerve/posterior cord lesion due to fracture at radial groove of humerus, or draping arm over bed and temporarily compressing posterior cord
59
originn insertion, and action of deep layer posterior forearm muscles
origin: radius, ulna, and interosseus membrane
insertion: metacarpals or phalanges of hand
action: move digits in name of muscle
supinator inserts on lateral radius and supinates the forearm and hand
60
list thenar muscles of the hand and innervation
opponens pollicis
abductor pollicis brevis
flexor pollivis brevis
median nerve
61
list hypothenar muscles of hand and innervation
opponens digiti minimi
abductor digiti minimi
flexor digiti minimi
innervation: ulnar nerve
62
adductor pollicis innervation
ulnar nerve
63
list muscles in hand that are inervated by median nerve
lumbircals
opponens pollicis
abductor pollicis brevis
flexor pollicis brevis
(LOAF)
64
action of lumbricals
flexion of meacarpophalangeal joint (MCP)
exten interphalangeal joints (IP)
65
dorsal interossei action
abduct (DAB) digits 2-5
66
palmar interossei action
adduct (PAD) digits 2,4,5
67
dorsal scapular nerve supplies \_\_\_\_
rhomboids
levator scapulae
68
what does long thoracic nerve supply
serratus anterior
69
what does suprascapular nerve supply
supraspinatus
infraspinatus
70
what does lateral pectoral nerve supply
pectoralis major
71
what does upper subscapular nerve supply
subscapularis
72
what does thoracodrosal nerve supply
latissimus dorsi
73
what does lower subscapular nerve supply
subscapularis
teres major
74
what does medial pectoral nerve supply
pectoralis major and minor
75
what does medial antebrachial cutaneous nerve supply
skin of medial forearm
76
segment derivation and motor supply of musculocutaneous nerve
C5-C7
anterior compartment of arm
77
segment derivation and motor supply of axillary nerve
C5-C6
deltoid, teres minor
78
segment derivation and motor supply of radial nerve
C5-T1
posterior compartment of arm and forearm
79
segment derivation and motor supply of median nerve
C6-T1
most muscles of anterior forearm and some of hand LOAF)
80
segment derivation and motor supply of ulnar nerve
C8-T1
flexor carpi ulnaris, medial half of flexor digitorum profundus, most hand muscles
81
Erb Palsy (Waiter' tip)
