myotomes and dermatomes Flashcards
what nerve(s) root cause(s) neck flexion and extension?
C1/2
what nerve root causes lateral neck flexion?
C3
what nerve root causes shoulder elevation?
C4
what nerve root causes shoulder elevation and elbow flexion?
C5
what nerve root causes elbow flexion and wrist extension
C6
what nerve root causes elbow extension and wrist flexion
C7
what nerve root causes thumb abduction and finger flexion
C8
what nerve root causes finger abduction
T1
what nerve root causes hip flexion
L1,2,3
what nerve root causes knee extension
L4
what nerve root causes ankle dorsiflexion
L5
what nerve root causes ankle plantarflexion
S1
what nerve root causes knee flexion
S2
what nerve root causes anal wink
S3,4
what dermatome covers the shoulder
C5
what dermatome covers the thumb
C6
what dermatome covers the middle finger
C7
what dermatome covers the little finger
C8
what dermatome covers the inner arm/axilla
T1
what dermatome covers the nipple
T4
what dermatome covers the umbilicus
T10
what dermatome covers the inguinal crease
L1
what dermatome covers the thigh
L3
what dermatome covers the medial leg
L4
what dermatome covers the dorsum of the foot
L5
what dermatome covers the lateral leg and heel
S1
what dermatome covers the perineum
S3,4,5
what nerve root causes the biceps reflex?
C5/6
what nerve root causes the triceps reflex?
C7
what nerve root causes the knee reflex?
L3/4
what nerve root causes the ankle reflex?
S1/2
