Lateral view of the serratus posterior inferior muscle with bony attachments. Muscle is shown on just one side.

Posterolateral view of the posterior wall. External oblique muscle is incised and turned laterally, and the internal oblique muscle is incised and turned medially exposing the subcostal (T12) and iliohypogastric nerve (L1). Square in insert indicates or

Posterior view of the cutaneous nerves of the back and first two muscle layers with trapezius muscle severed and reflected on the left.

Anterior view of the posterior wall of axilla, musculocutaneous nerve and posterior cord; pectoralis major and minor muscle and the lateral and medial cords are reflected, and the arteries, veins, and median and ulnar nerves are removed.

Posterior leg, superficial compartment, posterior view. C. Deeper dissection. The fleshy bellies of the gastrocnemius muscle are largely exised, and the proximal attachment of the soleus muscle is thereby exposed; the plantaris muscle is absent from this

Posterior view of the muscles of the atlanto-occipital and atlantoaxial joints.

Posterior view of the suboccipital region; trapezius, sternocleidomastoid, and splenius muscles are removed.

Serratus posterior superior muscle