Unilateral contraction of the muscles of the erector spinal group results in

A) extension of the vertebral column.
B) lateral flexion of the trunk.
C) flexion of the head.
D) flexion of the vertebral column.
E) abduction of the hip.

Erector Spinal

A group of muscles running along the spine that help keep the spine erect and perform rotational movements.

Unilateral Contraction

Unilateral Contraction refers to the tensing of muscles on only one side of the body, often used in targeted exercises or movements.

Vertebral Column

The vertebral column, also known as the spine, is a sequence of vertebrae extending from the skull to the lower back, providing structural support and protecting the spinal cord.