Spinalis thoracis muscle, illustration

Spinalis thoracis muscle, illustration

Longissimus thoracis muscle, illustration

Longissimus thoracis muscle, illustration

Semispinalis capitis muscle, computer illustration.

Semispinalis capitis muscle, computer illustration.

Longissimus thoracis muscle, computer illustration.

Horse rhomboideus thoracis muscle, illustration

Horse transversus thoracis muscle, illustration

Horse rhomboideus thoracis muscle, illustration

Neck muscles, illustration

Neck muscles, illustration

Back muscle, artwork

Back muscle, artwork

Back muscle, artwork

Greater occipital nerve and occipital artery.

Instrinsic muscles of the back showing the superficial and intermediate layers.

Anterior view of the transversus thoracis muscle with bony attachments. Muscle is shown on both sides of sternum.

Posterior view of the splenius and erector spinal muscles of the back; the sternocleidomastoid and levator scapulae muscles are reflected and the longissimus muscle is pulled laterally to show insertion into transverse process and ribs.

Instrinsic muscles of the back showing the superficial, deep, and minor deep layers.

Transverse section of back muscles at level of thoracic spine; erector spinae are shown in 3 columns and transversospinalis muscle is shown in 3 layers.

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

Arm flexing, emerging from computer monitor, "@" symbol on bicep, digital composite.

Posterior view of the thoracic wall illustrating muscles, ribs, and internal thoracic (internal mammary) arteries and veins.

Semispinalis thoracis muscle, computer illustration.