Axilla/arm Flashcards
Axilla anterior wall
pec majorpec minor
axilla medial wall
ribs, serratus anterior
axilla posterior wall
Teres major, latissimus dorsi, subscapularis
Pec major N
lateral and medial pectoral nerves
Pec major fxn
flexion of arm, adduction and medial rotation
pec minor N
lateral and medial pectoral nerves
pec minor fxn
protraction of scapula
Serratus anterior N
long thoracic N
serratus anterior fxn
protraction of scapula
keeps medial border and inferior angle of scapula opposed to thoracic wall
“Raise arms above the head”
Branch of brachial plexus root
Long thoracic nerve (C5 6 7)
Musculocutaneous components
C5 6 7
Median nerve components
C5 to T1union of lateral and medial cords
Ulnar nerve components
C7 8 T1
Brachial plexus components
ventral rami of C5 to C8, greater part of anterior raus of T1
Axillary nerve components
C5 6
Axillary nerve supply
deltoid
teres minor
skin overlying the deltoid muscle
Radial nerve components
C5 to T1
C5 movement
shoulder abduction (deltoid, axillary)
C6 movement
wrist extension
C7 movement
wrist fleixion
C8 movement
finger flexion
T1 movement
finger abduction
C5 reflex
biceps
C6 reflex
brachioradialis
C7 reflex
triceps
bursa related to the shoulder joint
subscapular bursa
subacromial bursa
subdeltoid bursa
Rotator cuff muscles
subscapulari
ssupraspinatus
infraspinatus
teres minor
Supraspinatus OI
supraspinous fossa to greater tubercle
infraspinatus OI
infraspinous fossa to greater tuberclw
teres minor OI
scapula to greater tubercle
subscapularis OI
subscapular fossa to lesser tubercle
teres major OI
scapula to humerus
supraspinatus N
brachial plexus
infraspinatus N
brachial plexus
teres minor N
brachial plexus
subscapularis N
brachial plexus
teres major N
brachial plexus
deltoid OI
clavical, acromion, spine of scapla to deltoid tuberosity of humerus
deltoid N
axillary
supraspinatus fxn
abduction
infraspinatus fxn
lateral rotation
teres minor fxn
lateral rotation
subscapularis fxn
medial rotation
teres major fxn
medial rotation
deltoid fxn
abduction of arm (main abductor)
arm flexor N
musculocutaneous
arm extensor N
radial
coracobrachialis fxn
flexion of arm
brachialis fxn
flexion of forearm
corachobrachialis N
musculocutaneous
brachialis N
musculocutaneous
biceps OI
long head: supraglenoid tubercle of scapula
short head: coracoid process of scapula
inserts into radial tuberosity
biceps N
musculocutaneous
biceps fxn
flexion of arm
flexion of forearm
supination of forearm
Quadrangular space bounds
teres minor, teres major, long head ot triceps, surgical neck of the humerus
quadrangular space contents
axillary nerve
posterior circumflex humeral artery
Triangular space bounds
teres minor
teres major
long head of triceps
triangular space contents
circumflex scapular vessels
triangular interval bounds
teres major
long head of triceps
shaftof the humerus
triangular interval contents
profunda brachiradial nerve
Triceps brachi OI
long head: infraglenoid tubercle of scapula
Lateral, medial heads: humerus
inserts into olecranon process
Triceps N
radial
Triceps function
elbow extension
Cubital fossa bounds
brachioradialis
pronator teres
imaginary line joining the two epicondyles of the humerus
cubital fossa contents
superficial - median cubital vein (IV site)
brachial artery
median nerve
radial nerve