The erector spinae muscle group is the chief extensor of the vertebral column and is arranged into which three vertical columns?
A) Iliocostalis, longissimus, and splenius
B) Iliocostalis, longissimus, and spinalis
C) Iliocostalis, multifidus, and splenius
D) Iliocostalis, multifidus, and spinalis

Question

Quizplus · Accepted Answer

The erector spinae muscle group consists of three vertical columns: iliocostalis, longissimus, and spinalis. These muscles are responsible for extending the vertebral column.

The Erector Spinae Muscle Group Is the Chief Extensor of the Vertebral