The Appendicular Skeleton
• Composed of 126 bones– Appendages (limbs)– Pectoral girdle– Pelvic girdle
The Appendicular Skeleton
Figure 5.6a
The Appendicular Skeleton
Figure 5.6b
The Pectoral (Shoulder) Girdle
• Composed of two bones– Clavicle—collarbone– Scapula—shoulder
blade• These bones allow the
upper limb to have exceptionally free movement
Bones of the Shoulder GirdleClavicle
Figure 5.21b
Bones of the Shoulder GirdleScapula Figure 5.21c–d
Bones of the Upper Limbs
• Humerus– Forms the arm– Single bone
Bones of the Upper LimbsUlna and Radius
• The forearm has two bones– Ulna• Medial bone in anatomical
position– Radius • Lateral bone in anatomical
position
Bones of the Upper LimbsCarpals, Metacarpals,Phalanges
• The hand– Carpals—wrist – Metacarpals—palm– Phalanges—fingers