Spinal Cord Levels and Available Muscles

Question 1

What muscles are available at the C4 level?

Answer 1

Scapular Elevators and Neck Musckes

Question 2

What muscles are available at the C5 level?

Answer 2

Supinator, Rhomboids, and Biceps

Question 3

What muscles are available at the C6 level?

Answer 3

Lats; Pecs (clavicular); serratus ant; wrist extensors

Question 4

What muscles are available at the C7 level?

Answer 4

Triceps; Pecs (sternal); pronators; finger extensors; wrist flexors

Question 5

What muscles are available at the C8 level?

Answer 5

Finger flexors

Question 6

What muscles are available at the T4-6 level?

Answer 6

erector spinae and the upper 1/2 of the intercostals

Question 7

What muscles are available from T9-12 level?

Answer 7

the lower 1/2 of the intercostals and the lower abdominals

Question 8

What muscles become available at the L2 level?

Answer 8

iliopsoas; hip adductors; Quadratus

Question 9

What muscles become available at the L3 level?

Answer 9

Quadriceps and Hip external rotators

Question 10

What muscles become available at the L4 level?

Answer 10

Hip IR and ABD; Ankle Inv/ever; tibialis anterior

Question 11

What muscles become available at the L5 level?

Answer 11

Toe flexors and great toe extensor

Question 12

What muscles become available at the S1 level?

Answer 12

gastroc-soleus