Bones of Pectoral Girdle

• The Upper Limb:

  • Many structural similarities with the lower limb but two main differences are:
  • Manipulation vs. locomotion
  • Flexor and extensor aspects are on opposite sides of the limb due to embryonic development and differentiation of the limb buds (knee extension and elbow extension)
• Pectoral Girdle:

  • Consists of two clavicles and two scapulae
  • Attaches the upper limb to the trunk
  • Allows mobility and flexibility of the upper limb

  A) clavicle

  B) scapula