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High-Yield
Learning Radar
M
supination
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Reduced biceps
reflex (C5–C6)
Lateral forearm
Lateral root of
median nerve
Atrophy of
C5–C7
thenar muscles
Impaired
flexion of wrist,
thumb, index,
and middle
finger
Hand of
benediction
Forearm: all flexors
(anterior
compartment)
except for those
supplied by the
Medial root of
median nerve
ulnar nerve
Hand: thenar
muscles and lateral
two lumbricals
Radial ⅔ of
(when trying to
the palm
make a fist)
Palmar aspect
Median claw
of the radial
(when
Proximal injury:
3 ½ fingers
extending the
supracondylar fracture
Dorsal aspect
fingers)
of the humerus
of the distal
Deep injury to
Distal injury
phalanges of
the wrist or
Carpal tunnel
the radial
forearm
compression
3 ½ fingers
impairing the
Wrist laceration
Autonomous
functions of the
(suicide aSempt)
sensory zone:
thenar muscles:
tip of the
ape hand