Posterior view of the muscles of the torso.

Deep muscles of the back: erector spinae and semispinalis capitis in schematic view.

Lateral view of the skull and neck muscles bent to the back.

Anterior view of the muscles of the head and deep muscles of the neck.

Transverse section of the posterior abdominal wall and kidney.

Deep muscles of the back: erector spinae and semispinalis capitis in a schematic transverse section at the thoracic level.

Three lateral images of male head and neck featuring skull and neck muscles as head is held stationary (top), bent to the back (middle), and to the front (bottom).

Deep muscles of the back: erector spinae and semispinalis capitis in a schematic transverse section at the lumbar level.

Sagittal MRI of the abdomen at the level of the left side of the vertebral column. Small image at right shows level of scan (line D).

Transverse, or horizontal (axial), MRI of the thorax at the level of the right brachiocephalic vein bifurcation and T4. The image to the right indicates the level of each transverse MRI.

Transverse, or horizontal (axial), MRI of the thorax at the level of the atria and T9. The image to the right indicates the level of each transverse MRI.

Transverse or horizontal (axial) MRI of the abdomen at the level of L1. Image at bottom illustrates level of scan (line C).

Deep back & neck muscles