Dermatomes Flashcards
A dermatome is an area of skin supplied by sensory nerve fibers originating from where?
A SINGLE DORSAL NERVE ROOT
of
A SINGLE SPINAL NERVE
Limb organization of dermatomes is more complex as a result of what?
EMBRYOLOGICAL DEVELOPMENT
Do dermatomes have distinct borders?
NO
considerable overlap of innervation
Which dermatome supplies sensation to the lateral shoulder and arm?
C5
Which dermatome supplies sensation to the thumb, index finger (radial border)?
C6
Which dermatome supplies sensation to the middle finger?
C7
Which dermatome supplies sensation to the digiti minimi?
C8
Which dermatome supplies sensation to the medial elbow?
T1
Which dermatome’s intercostal nn form segmental strips on thorax?
T2 - T12
Which dermatome supplies sensation across the nipples?
T4
Which dermatome goes across the umbilicus?
T10
Which dermatome goes across the upper edge of the pubic bone?
T12
Which dermatome supplies sensation to immediately below the inguinal ligament?
L1
Which dermatome supplies sensation to the middle anterior thigh?
L2
Which dermatome supplies sensation to the anterior thigh imm proximal to the patella?
L3
