prac questions - 2 Flashcards
Which nerve can be damaged by blunt trauma to the lateral thorax?
WHat muscles affected and how would you test?
long thoracic nercve
serratus anterior - test by raising arms out parallel to the floor , performing wall pushup or floor pushup. Scap control observed esp for winging
Which nerve can be damaged by fracture of the surgical neck of the humerus?
Axillary
Which nerve can be damaged by fracture of the shaft of humerus?
Radial
Name the supraclavicular branches of the brachial plexus.
ROOTS - dorsal scapular (C5) - long thoracic (C5, 6, 7) TRUNKS - suprascapular C5,6 subclavian
Name the branches that arise from the posterior cord of the brachial plexus.
upper subscap. lower subscap. thoracodorsal axillary radial
DORSAL SCAPULAR NERVE
root - C5
(levator scapulae)
rhomboid minor
rhomboid major
LONG THORACIC NERVE
root - C5,6,7
serratus anterior
SUPRASCAPULAR NERVE
C5,6
superior trunk
supraspinatus
infraspinatus
SUBCLAVIAN NERVE
superior trunk
subclavius
LATERAL PECTORAL NERVE (LAT CHORD)
MEDIAL PECTORAL NERVE (MED. CHORD)
Pectoralis major & minor
UPPER SUBSCAPULAR NERVE
C5,6
posterior chord
superior scapularis
Lower SUBSCAPULAR NERVE
Teres major
inferior subscap.
C5,6
posterior chord
THORACODORSAL NERVE
C6,7,8
lat. dorsi
Axillary
location: shoulder
deltoids
teres minor
RADIAL
Posterior Arm
Posterior Forearm
C5-T1
