Which of the following is a lateral spinal flexor when used unilaterally?
A) iliocostalis group
B) spinalis group
C) longissimus group
D) quadratus lumborum
E) both A and B

Question

Quizplus · Accepted Answer

The quadratus lumborum is a lateral spinal flexor when used unilaterally. The iliocostalis, spinalis, and longissimus groups are all part of the erector spinae muscle group, which primarily functions to extend the spine.

Which of the Following Is a Lateral Spinal Flexor When