Thoracic & Upper Lumbar Nerve Roots

Question 1

Testing Individual Nerve Root Levels T2-T12

Answer 1

Disc Level: T2-T12Muscle Test (1): 1.) Rib elevation - Intercostals - Rectus abdominusReflex: NoneSensation: - T4 = Nipple line - T7 = Xyphoid process - T10 = Umbilicus - T12 = Groin

Question 2

Testing Individual Nerve Roots L1, L2 and L3

Answer 2

Disc Level: T12-L2Muscle Test (1): 1.) Primary hip flexor - Iliopsoas (L1-L3)Reflex: NoneSensation: Anterior thigh, obliquely from lateral to medial - L1 = Top of thigh - L2 = Middle of thigh - L3 = Lower thigh

Question 3

Testing Individual Nerve Roots L2, L3 and L4

Answer 3

Disc Level: L1-L3Muscle Tests (2): 1.) Primary knee extensors - Quadriceps femoris - Vastus medialis - Vastus intermedius (L2-L4, Femoral Nerve) 2.) Primary adductor - Adductor longus - Adductor brevis - Adductor magnus (L2-L4, Obturator Nerve)Reflex: PatellarSensation: - L2 = Middle of thigh - L3 = Lower thigh - L4 = Anteriomedial leg below the knee & medial side of the foot