Dermatomes and Myotomes Flashcards
Where is the L1 dermatome?
in the hip crease
Where is the L2 dermatome?
upper anterior and all of lateral thigh
Where is the L3 dermatome?
medial thigh and over knee
Where is the L4 dermatome?
medial lower limb and big toe (top and bottom)
Where is the L5 dermatome?
lateral lower limb and middle three toes (top and bottom)
Where is the S1 dermatome?
little toe, lateral malleolus and the underside of the foot
Where is the S2 dermatome?
middle of the back of the thigh to half way down the calf
What is the L2 myotome?
Hip flexion
What is the L3 myotome?
Knee extension
What is the L4 myotome?
Dorsiflexion/inversion
What is the L5 myotome?
Great toe extension
What is the S1 myotome?
Ankle eversion
What is the S2 myotome?
Ankle plantarflexion
Where is the C3 dermatome?
upper traps to acromion
Where is the C4 dermatome?
upper part of deltoid (front, side and back)
