The intertransversarii function to perform which actions?

The intertransversarii function to perform which actions?

• A. Lateral flexion and stabilization of the spine
• B. Extension of the spine
• C. Rotation of the head
• D. Abduction of the scapula

Answer: (A)

The intertransversarii are small muscles that run between adjacent transverse processes of the vertebrae. When they contract on one side, they pull the vertebrae toward that same side, producing lateral flexion of the spine. They also play a key stabilizing role, helping maintain posture and control movement by limiting excessive motion between vertebrae during bending. They are not the main movers for extending the spine, rotating the head, or moving the scapula, so their primary actions are lateral flexion and stabilization of the spine.

The intertransversarii are small muscles that run between adjacent transverse processes of the vertebrae. When they contract on one side, they pull the vertebrae toward that same side, producing lateral flexion of the spine. They also play a key stabilizing role, helping maintain posture and control movement by limiting excessive motion between vertebrae during bending. They are not the main movers for extending the spine, rotating the head, or moving the scapula, so their primary actions are lateral flexion and stabilization of the spine.