Segmental spinal Cord level and Function
		Level	Function
		C1-C6	Neck flexors
		C1-T1	Neck extensors
		C3, C4, C5	Supply diaphragm
		C5, C6	Shoulder movement, raise arm (deltoid); flexion of elbow (biceps); C6 externally rotates the arm (supinates)
		C6, C7, C8	Extends elbow and wrist (triceps and wrist extensors); pronates wrist
		C7, C8, T1	Flexes wrist
		C8, T1	Supply small muscles of the hand
		T1-T6	lntercostals and trunk above the waist
		T7-L1	Abdominal muscles
		L1, L2, L3, L4	Thigh flexion
		L2, L3, L4	Thigh adduction
		L4, L5, S1	Thigh adduction
		L5, S1, S2	Extension of leg at the hip (gluteus maximus)
		L2, L3, L4	Extension of leg at the knee (quadriceps femoris)
		L4, L5, S1, S2	Flexion of leg at the knee (hamstrings)
		L4, L5, S1,	Dorsiflexion of foot (tibialis anterior)
		L4, L5, S1,	Extension of toes
		L5, S1, S2	Plantar flexion of foot
		L5, S1, S2	Nexion of toes