Muscles of Spine (Part 1)

Question 1

Cervical Region

Answer 1

-Flexion = 45°
-Extension = 45°
-Lateral Flexion = 45°
-Rotation = about 60°

Question 2

Lumbar Spine

Answer 2

-Flexion = 80°
-Extension = 20°- 30°
- Lumbar Lateral Flexion = 35°
-Rotation = 45°

Question 3

External Oblique
(Superficial)

Answer 3

-Rotation (contralateral)
-Lumbar Flexion
-Lateral Flexion
-Posterior Pelvic Tilt

Question 4

Internal Oblique
(Intermediate)

Answer 4

-Rotation (ipsilateral)
-Lumbar Flexion
-Lateral Flexion
-Posterior Pelvic Tilt

Question 5

Rectus Abdominis
(Intermediate)

Answer 5

-Lumbar flexion
-Posterior Pelvic Tilt
-Weak lateral flexion

Question 6

Transverse Abdominis
(Deep)

Answer 6

-Increase intra-abdominal pressure
-Increase stiffness in thoracolumbar fascia
-Increase lumbar stabilization

Question 7

Erector Spinae
(Posterior: Iliocostalis, Longissimus, Spinalis)

Answer 7

-Extension
-Ipsilateral flexion and rotation
-Anterior Pelvic Tilt

Question 8

Quadratus Lumborum
(Posterior)

Answer 8

-Lateral Flexion
-Stabilizes pelvis and hip
-Extension of lumbar spine
-Anterior Pelvic Tilt

Question 9

Multifidus
(Deep)

Answer 9

-Segmental stabilization
-Segmental extension
-Segmental rotation