Which are actions of the erector spinae group?
A)flexion and lateral flexion of the trunk and neck and head at the spinal joints
B)extension and lateral flexion of the trunk and neck and head at the spinal joints
C)flexion and extension of the trunk and neck and head at the spinal joints
D)extension of the trunk and neck and head at the spinal joints and extension of the thigh at the hip joint

Question

Quizplus · Accepted Answer

The erector spinae group mainly functions in extension of the spine and lateral flexion of the trunk and neck. Therefore, option B, which describes extension and lateral flexion of the trunk and neck, is the best choice. Option A is incorrect because it includes flexion, which is not a primary action of the erector spinae group. Option C is incorrect because it includes both flexion and extension, which is not an action exclusive to this muscle group. Option D is incorrect because it describes extension of the thigh at the hip joint, which is performed by the gluteus maximus muscle, not the erector spinae group.

Which Are Actions of the Erector Spinae Group