FINALS: Prime movers w/ Innervations

Question 1

Lumbar Lateral Flexion (5)

Answer 1

Unilateral Quadratus Lumborum - T12-L3 nerves

Unilateral erector spinae mm - spinal nerve

Unilateral external oblique - 8-12 intercostal, iliohypogastric, ilioinguinal n

Unilateral internal oblique - 8-12 intercostal, iliohypogastric, ilioinguinal n

intertransversarii - spinal n

Question 2

Lumbar Rotation (3)

Answer 2

• transverospinalis group: multifidus, rotatores, semispinalis (spinal n)
• contralaterally external oblique - 8-12 intercostal, iliohypogastric, ilioinguinal n
• ipsilaterally internal oblique - 8-12 intercostal, iliohypogastric, ilioinguinal n

Question 3

Abdominal Bracing (5)

Answer 3

• rectus abdominus (7-12 intercostal n)
• external obliques (8-12 intercostal, iliohypogastric, ilioinguinal)
• internal obliques (same as EO)
• transverse abdominus (7-12 intercostal, iliohypogastric, ilioinguinal n)
• multifidus (spinal n)

Question 4

Sacral Nutation (3)

Answer 4

• rectus femoris
• paraspinals
• iliacus

Question 5

Sacral counternutation (4)

Answer 5

• semimebranosis
• semitendonosis
• biceps femoris
• rectus abdominus

Question 6

Anterior pelvic tilt (3)

Answer 6

• erector spinae
• iliopsoas
• rectus femoris

Question 7

posterior pelvic tilt (5)

Answer 7

• abdominals
• gluteus maximus
• semimembranosis
• semitendonosis
• biceps femoris

Question 8

pelvic lateral tilt (4)

Answer 8

• glute medius, minimus, TFL, QL