Spinal Movements And Muscles

Question 1

Spinal flexion uses which secondary muscles?

Answer 1

Iliopsoas (in select circumstances)

Question 2

Spinal extension uses which primary muscles?

Answer 2

Erector spinae
Spinalis
Longissimus
Iliocostalis

Question 3

Spinal extension uses which secondary muscles?

Answer 3

Semispinalis
Deep posterior spinal group:
interspinales,
intertransversales, rotatores, multifidus

Question 4

Spinal lateral flexion uses which primary muscles?

Answer 4

External oblique (same side), internal oblique (same side)
Quadratus lumborum ( same side), Erector spinae (same side)
Spinalis, longissimus, iliocostalis

Question 5

Spinal lateral flexion uses which secondary muscles?

Answer 5

Semispinalis ( same side)
Deep posterior spinal group: intertransversales, rotatores, multifidus,
Rectus abdominus ( same side) iliopsoas ( lumbar region) same side

Question 6

Spinal rotation - primary muscles

Answer 6

External oblique- opp side
Internal oblique- same side
Erector spinae- same side
Longissimus, iliocostalis

Question 7

Spinal rotation- secondary muscles

Answer 7

Semispinales- opp side

Deep posterior spinal group - opp side, rotatores, multifidus

Question 8

Spinal flexion uses which primary muscles?

Answer 8

Rectus abdominus
External obliques
Internal obliques