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Learn about the 126 bones comprising the Appendicular Skeleton, including the limbs, pectoral girdle, and pelvic girdle. Discover how bones like the clavicle and scapula facilitate free movement. Explore the upper limbs' bones like humerus, ulna, and radius, along with the hand's carpals and phalanges.
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The Appendicular Skeleton • Composed of 126 bones • Limbs (appendages) • 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 Girdle Figure 5.21a
Bones of the Shoulder Girdle Figure 5.21b
Bones of the Shoulder Girdle Figure 5.21c–d
Bones of the Upper Limbs • Humerus • Forms the arm • Single bone
Bones of the Upper Limbs Figure 5.22a–b
Bones of the Upper Limbs • The forearm has two bones • Ulna • Medial bone in anatomical position • Radius • Lateral bone in anatomical position
Bones of the Upper Limbs Figure 5.22c
Bones of the Upper Limbs • The hand • Carpals—wrist • Metacarpals—palm • Phalanges—fingers
Bones of the Upper Limbs Figure 5.23
