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Chapter 5 The Skeletal System Appendicular Skeleton

Explore the anatomy of the appendicular skeleton, including the limbs, pectoral and pelvic girdles. Learn about bones like the humerus, ulna, radius, femur, tibia, and fibula. Understand how these bones allow for free movement and support vital organs.

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Chapter 5 The Skeletal System Appendicular Skeleton

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  1. Chapter 5The Skeletal SystemAppendicular Skeleton

  2. The Appendicular Skeleton • Limbs (appendages) • Pectoral girdle • Pelvic girdle

  3. The Appendicular Skeleton

  4. Composed of two bones • Clavicle – collarbone • Scapula – shoulder blade • These bones allow the upper limb to have exceptionally free movement The Pectoral (Shoulder) Girdle

  5. Bones of the Shoulder Girdle

  6. Bones of the Shoulder Girdle

  7. The arm is formed by a single bone • Humerus Bones of the Upper Limb

  8. Bones of the Upper Limb • The forearm has two bones • Ulna • Radius

  9. The hand • Carpals – wrist • Metacarpals – palm • Phalanges – fingers Bones of the Upper Limb

  10. Hip bones – Coxal Bones • Composed of three pair of fused bones • Ilium • Ischium • Pubic bone • The total weight of the upper body rests on the pelvis • Protects several organs • Reproductive organs • Urinary bladder • Part of the large intestine Bones of the Pelvic Girdle

  11. The Pelvis Figure 5.23a

  12. The Pelvis Figure 5.23b

  13. Gender Differences of the Pelvis Figure 5.23c

  14. Bones of the Lower Limbs • The thigh has one bone • Femur – thigh bone

  15. Bones of the Lower Limbs • The leg has two bones • Tibia • Fibula

  16. The foot • Tarsus – ankle • Metatarsals – sole • Phalanges – toes Bones of the Lower Limbs

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