1. Pelvic Girdle
• The pelvic girdle consists of two halves fused at the pubic symphysis.
• Each half is made up of three fused bones:
? the ilium,
? ischium
? pubis.
• Each half has cup-shaped cavity for the acetabulum for articulation with the head of the femur.
• Between the ischium and pubis is an opening obturator foramen where spinal nerves, blood vessels and a tough inflexible connective tissues pass.
• The ilium, ischium and pubis are fused to form the innominate bone.
2. The Femur
• The femur is the long bone joining the pelvic girdle and the knee.
• The head of the femur articulates with acetabulum forming the ball and socket joint at the hip.
• The femur has a long shaft.
• At the distal end it has condyles that articulate with the tibia to form a hinge joint at the knee.
• The patella covers the knee joint and prevents the upward movement of the lower leg.
3. Tibia and Fibula
• The tibia is a large bone, and the fibula a smaller bone is fused to it on the distal part.
• In humans the tibia and fibula are clearly distinguishable.
Wilfykil answered the question on February 28, 2019 at 12:51
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