root syndromes

Question 1

c5

Answer 1

dermatome: lower lateral upper arm
muscle: deltoid and biceps
movement: abduct shoulder, flex elbow
reflex: biceps

Question 2

c6

Answer 2

dermatome: lateral forearm
muscle: extensor carpi radialis longus and brevis
movement: extend wrist
reflex: brachioradialis

Question 3

c7

Answer 3

dermatome: middle finger
muscle: triceps and flexor carpi radialis
movement: extend elbow flex wrist
reflex: triceps

Question 4

c8

Answer 4

dermatome: medial forearm
muscle: flexor digitorum superficialis and profundus
movement: flex fingers
reflex: none

Question 5

L1

Answer 5

dermatome: groin
muscle: illiopsoas
movement: flex hip
reflex: cremaster

Question 6

L2

Answer 6

dermatome: anterior thigh
muscle: illopsoas sartorius hip adductors
movement: flex and adduct hip
reflex: cremaster

Question 7

L3

Answer 7

dermatome: medial knee
muscle: illopsoas sartorius hip adductors quads
movement: flex and adduct hip, extend knee
reflex: patellar

Question 8

L4

Answer 8

dermatome: medial calf
muscle: tibialis anterior, quads
movement: extend knee, foot inversion
reflex: patellar

Question 9

L5

Answer 9

dermatome: lateral lower leg, dorsum foot
muscle: extensor hallucis longus and brevis
movement: dorsiflex and toe extension
reflex: none

Question 10

S1

Answer 10

dermatome: lateral edge foot
muscle: gastrocnemius and soleus
movement: plantar flex
reflex: ankle jerk

Question 11

S2

Answer 11

dermatome: posterior thigh
muscle: flexor digitorum and hallucis longus
movement: plantar and toe flexion
reflex: none