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Skeletal System - “Lower Extremity”

Skeletal System - “Lower Extremity”. __ Total Bones Hipbone (1) = Femur (1) = 2 Tibia (1) = _______ (1) = 2 Patella (1) = 2 Tarsals (7) = __________ (5) = 10 Phalanges (14) =. Appendicular - Lower Extremity. Pelvic Girdle. ______________ Formed by fusion of _____ bones

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Skeletal System - “Lower Extremity”

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  1. Skeletal System - “Lower Extremity”

  2. __ Total Bones Hipbone (1) = Femur (1) = 2 Tibia (1) = _______ (1) = 2 Patella (1) = 2 Tarsals (7) = __________ (5) = 10 Phalanges (14) = Appendicular - Lower Extremity

  3. Pelvic Girdle • ______________ • Formed by fusion of _____ bones • Ilium (superior) • Ischium (__________and posterior) • ____________ (inferior and anterior) • Strong and stable support for ____________ column

  4. Ilium (superior) • “Flank” • Most ___________ and largest hipbone

  5. Lateral View

  6. Medial View

  7. Ischium (inferior & posterior) • “Hip” • Inferior, posterior portion of the hipbone

  8. Pubis (inferior & anterior) • “______________ mature” • Anterior and inferior part of the hipbone

  9. Pelvis • Together with the sacrum and coccyx, the two hipbones form the basin-like “Pelvis” • Pelvic Brim / Inlet: • seperates the superior and inferior portions of the pelvis • is the superior boundary of pelvis oblique plane

  10. Pelvic Brim / Inlet Plane from sacrum to sup. pubic symphysis

  11. Female Pelvis • Wide pelvic outlet • Shallow • Male Pelvis • Narrow pelvic outlet • Deep

  12. Female Pelvis • ______ pelvic outlet • Shallow • Pubic arch > 90-deg • Male Pelvis • __________ pelvic outlet • Deep • Pubic arch < 90-deg

  13. Femur • “Thighbone” • _________, heaviest, and ______ bone in body • Head of femur • Proximally _________ with hipbone at the _______________ • _________ articulates with tibia and patella

  14. Femur – Proximal End Anterior

  15. “__________Shinbone” Larger, medial bone of lower leg Bears _________ of body’s weighty Proximal articulation with _______ and __________ _________ articulation with fibula and talus Tibia

  16. Tibia - Distal End • Medial Malleolus “medial ankle bone” Medial Malleolus Fibular Notch Anterior

  17. _______ “shinbone” Thinner and smaller than tibia Does not bear much bodyweight (non-weight bearing) Fibula

  18. Patella • “Kneecap” • Largest ________bone • Subcutaneous and easily _____________ • Increases __________ for quadriceps muscles • Lies anterior to distal femur

  19. _____________ Heel bone Talus Most superior and articulates with tibia Navicular _____________ _____________ Lateral ______________ Medial (1st) Intermediate (2nd) Lateral (3rd) Tarsal Bones

  20. Lateral Cuneiform Intermediate Cuneiform Medial Cuneiform Navicular Cuboid Talus Calcaneus Superior

  21. Metatarsals • 5 per foot • Numbered 1-5 from big toe to little toe • ex: Big Toe “___________” =1 • ex: Pinky Toe= 5 1 2 3 4 5

  22. Phalanges • 14 bones of the toes • ____ per toe • ____ per big toe • Regions: • ______________ • ______________ • ______________

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