This muscle extends and rotates the vertebral column toward the opposite side of the body.Its origin is on the sacrum and transverse processes of each vertebra and its insertion is the spinous processes of more superior vertebrae.
A)Multifidus
B)Interspinales
C)Intertransversarii
D)Rotators
E)Quadratus lumborum

Question

Quizplus · Accepted Answer

The muscle described is the multifidus, which originates on the sacrum and transverse processes of each vertebra and inserts on the spinous processes of more superior vertebrae. Its action is to extend and rotate the vertebral column toward the opposite side of the body. The other muscles listed have different origins, insertions, and actions.

This Muscle Extends and Rotates the Vertebral Column Toward the Opposite