The upper limb consists of four major segments. Each of these segments is divided into regions/muscle compartments for more precise description.
Shoulder
Axio-appendicular muscles moving the glenohumeral joint & pectoral girdle
Most of these muscles were discussed and dissected in previous sessions and include: pectoralis major & minor, trapezius, rhomboids, latissimus dorsi, etc.
Intrinsic shoulder muscles
Arm (brachium)
Anterior (flexor) compartment
Posterior (extensor) compartment
Forearm (antebrachium)
Anterior (flexor/pronator) compartment
Posterior (extensor/supinator) compartment
Hand
Thenar compartment
Adductor compartment
Hypothenar compartment
Central compartment
Interosseous compartment