L4.8.2.2.1: Pelvic Girdle

• PELVIC GIRDLE

  ● Also known as the bony pelvis

  ● Bony ring formed by the left and right hip bones and the sacrum

  ● Surrounds the pelvic cavity

  ● Connects the vertebral column to the lower limbs
• Ischium

  • forms the most important part of the coccyx bone
• Pubis

  • most anterior part of the coxal bone
  • Composed of inferior pubic ramus and the body of pubis
• Acetabulum

  • deep socket that receives the head of the femur
• Obturator foramen

  • opening that allows blood vessels and nerves to pass the anterior part of the thigh
• 1. coxal bone
  2. ilium
  3. pubis
  4. ischium
  5. sacrum
  6. coccyx
  7. iliac crest
  8. sacroiliac joint
  9. pelvic brim
  10. ischial spine
  11. acetabulum
  12. pubic symphysis

  A) 1

  B) 2-4

  C) 5-6

  D) 7-12

  
• PARTS OF ILIUM

  • Iliac crest
  • Greater sciatic notch
  • Ala
  • Anterior and posterior superior iliac spine
  • Anterior and posterior inferior iliac spine
• Greater sciatic notch

  • Allows blood vessels and large sciatic nerves to pass through the pelvis into the thigh
• Ala

  • Wing-like portion of the ilium
• PARTS OF ISCHIUM

  • Ischial spine
  • Ischial tuberosity
  • Greater sciatic notch
  • Ischial body
  • Ischial ramus
• Ischial spine

  • Found superior to the tuberosity
  • Important landmark because it narrows the outlet of the pelvis which is part of the birth canal
• Ischial tuberosity

  • Roughened area that receives the weight of the body when the person is sitting down
• Greater sciatic notch

  • Allows blood vessel and sciatic nerve to pass from the pelvis to the thigh
  • Usually avoided when giving injection in the gluteal region
• 1. posterior superior iliac spine
  2. posterior inferior iliac spine
  3. greater sciatic notch
  4. ischial body
  5. ischial spine
  6. ischial tuberosity
  7. ischium
  8. ischial ramus
  9. ala
  10. ilium
  11. iliac crest
  12. anterior superior iliac spine
  13. anterior inferior iliac spine
  14. acetabulum
  15. body of pubis
  16. pubis
  17. inferior pubic ramus
  18. obturator foramen

  A) 1-8

  B) 9

  C) 10-18