Primary Actions

Question 1

What is the primary action of the Spinalis?

Answer 1

Unilaterally: Laterally flex vertebral column to the same side

Question 2

What is the primary action of the Longissimus?

Answer 2

Unilaterally: Laterally flex vertebral column to the same side

Question 3

What is the primary action of the Iliocostalis?

Answer 3

Unilaterally: Laterally flex vertebral column to the same side

Question 4

What is the primary action of the Multifidi?

Answer 4

Unilaterally: Rotate the vertebral column to the opposite side

Question 5

What is the primary action of the Rotatores?

Answer 5

Unilaterally: Rotate the vertebral column to the opposite side

Question 6

What is the primary action of the Semispinalis Capitis?

Answer 6

Extend the verebral column and head

Question 7

What is the primary action of the Splenius Capitis?

Answer 7

Unilaterally: Rotate the head and neck to the same side

Question 8

What is the primary action of the Splenius Cervicis?

Answer 8

Unilaterally: Rotate the head and neck to the same side

Question 9

What is the primary action of the Rectus Capitis Posterior Minor?

Answer 9

Rock and Tilt the head back into extension (at atlantooccipital joint (between base of skull & C1))

Question 10

What is the primary action of the Rectus Capitis Posterior Major?

Answer 10

Rock and Tilt the head back into extension (at atlantooccipital and atlantoaxial joints (between base of skull & C1, and C1 and C2))

Question 11

What is the primary action of the Oblique Capitis Superior?

Answer 11

Rock and Tilt the head back into extension (at atlantooccipital joint (between base of skull & C1))

Question 12

What is the primary action of the Oblique Capitis Inferior?

Answer 12

Rotate the head to the same side (at the atlantoaxial joint (between C-1 and C-2))