Exam
Sensory Exam
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Sensory Exam
, Afferent Neuron, Sensory Level, Sensory Nerve, Touch Sensation, Skin Sense, Dermatome
See Also
Motor Exam
Images
Dermatomes
Exam
Pearls - Cold
Sensation
testing
Use syringe filled with
Alcohol
and blunt needle
Spray skin at each Dermatome level
Patient should feel cold
Sensation
Exam
Dermatomes - Upper body Sensory Innervation
Mnemonic: C4-Clavicle, T4-Nipple Line, T10-Belly Button, L1-Inguinal
C1-2: Occipital and parietal region
Sensation
C3: Lower pinna, posterior cheek, temporal region and lateral neck
C4: Dermatome along
Scapula
r spine, mid-deltoid and clavicle
C5: Deltoid, Lateral Upper Arm and
Forearm
C6: Thumb, Index Finger, lateral
Forearm
(
Radial Nerve
) - dorsal first web space
C7: Index, Middle and Ring Fingers, triceps (
Median Nerve
) - thenar eminence
C8: Middle, Ring and Little Finger (pinky), medial
Forearm
(
Ulnar Nerve
) - hypothenar eminence
T1: Ulnar hand, axilla to olecranon
T4: Nipple
T8: Xiphoid
T10:
Umbilicus
T12: Symphysis
Exam
Dermatomes - Lower body Sensory Innervation
L1: Inferior to iliac crest
L3: Anterior and medial thigh down to knee
L4: Anterior low leg and medial foot
L5: Lateral leg, heel, dorsal foot, space between 1st and second toes
S1: Posterior leg, lateral
Foot
, dorsal fifth toe
S3: Ischial tuberosity area
S4-5: Perianal region
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