The bony pelvis is a ring-shaped skeletal structure located at the base of the trunk that connects the vertebral column to the lower limbs and supports the weight of the upper body. It is formed by two Hip Bones (each composed of the ilium, ischium, and pubis), the Sacrum, and the Coccyx. The pelvis protects pelvic and lower abdominal organs, provides attachment sites for muscles and ligaments, and plays an essential role in locomotion and childbirth. It is divided into the greater (false) pelvis above the pelvic brim and the lesser (true) pelvis below the pelvic brim, with the true pelvis forming the birth canal in females. Female pelves are generally wider and shallower than male pelves, reflecting their role in parturition.
Objectives
By the end of the lesson, the student should be able to;
- Describe the bony pelvis
- Identify the various parts of the bony pelvis
- State the landmarks on the various parts
- Outline the supporting joints and ligaments
- Identify the divisions on the pelvis.
- Explain pelvic plane, pelvic inclination and axis.
- Identify the measurement taken on the pelvis
Situation
- Articulates with the 5th lumber vertebra above
- Laterally with the heads of right and left femur at the corresponding acetabulum.
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