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Anatomy of the Pelvic Limb: Understanding the Femur, Tibia, and Tarsal Bones

The pelvic limb consists of several key bones, including the femur, tibia, fibula, and various tarsal bones. The femur, known as the round bone, forms the proximal structure of the hind limb and features a deep articular head with a supporting ligament. The tibia, divided into proximal extremity, shaft, and distal extremity, plays a critical role in stifle joint formation. The fibula, which has undergone substantial evolutionary size reduction, is comprised of a head, neck, shaft, and distal extremity. Understanding these structures is essential for comprehending limb mechanics and function.

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Anatomy of the Pelvic Limb: Understanding the Femur, Tibia, and Tarsal Bones

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  1. pelviclimbGroup 3 Azlin AliyaRoszulaikha Hajarsuhailaaffrin Hanim Sarah Nabila Syuhada

  2. Femur

  3. Femur – ‘Round bone or leg bone’ • The proximal bone of the hindlimb is the femur or round bone. The articular head of the femur is deeply rounded and it bears a round ligament that holds it into the acetabulum. • Another distinctive feature of the femur is thebroad groove between the two trochlear ridges located distally. The patella or knee cap slides in this groove

  4. Tibia ,Fibula&Talus

  5. Tibia • Contribute to stifle joint formation • Divided into 3 segments : • 1. Proximal extremity • 2. Tibial shaft • 3. Distal extremity

  6. Fibula • Fibula can be divided into proximal head , a neck, shaft , and distal extremity • Fibula size may has undergone remarked reduction during evolution making the degree in size different beween species

  7. Tarsal Bones • Consists of : • 1. Talus • 2. Calcaneus • 3. Middle row • 4. Central Tarsal Bone

  8. Left Pelvic limb : tibia , Fibula , tarsal bones

  9. Tibia • Extensor groove (27) • Popliteal line (28') • Body of tibia (28) • Fibula • Head of the fibula (32) • Lateral malleolus (35) • Tarsal Bones • Talus (37) • Calcaneus (42) • Tuber calcanei (43) • Sustentaculumtali (44) • Central + 4th tarsal bone (45) • T II + T III, dorsal view, and T I, in plantar view (46)

  10. Cranially Caudally

  11. Close Up At Intercondyloid Eminence Cranially

  12. Right Pelvic Limb: Tibia , Tarsal Bones

  13. Tibia • Refer to previous slide 4 & 5 • Fibula • Lateral malleolus (35) • Tarsal Bones • Talus (37) • Body of talus (38) • Prox. trochlea (39) • Neck (40) • Head (41) • Distal trochlea (41') • Tuber calcanei (43) • Sustentaculumtali (44) • Central + 4th tarsal bone (45) • T II + T III, dorsal view, and T I, in plantar view (46)

  14. Pop Quiz ^_^

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