Intermediate Pelvic Outlet Quiz

Q1. Which sequence best describes the boundaries of the pelvic outlet from anterior to posterior?

• Pubic tubercles, iliac fossae, sacral promontory, coccyx
• Pubic symphysis, ischiopubic rami, ischial tuberosities, sacrotuberous ligaments, coccyx
• Sacral promontory, arcuate lines, pecten pubis, pubic crests
• Iliac crests, acetabula, ischial spines, sacral alae

Q2. Which diameter of the pelvic outlet is measured between the inner aspects of the ischial tuberosities?

• Intertuberous diameter
• Diagonal conjugate
• Interspinous diameter
• Obstetric conjugate

Q3. Which structures form the pubic arch?

• Right and left ischiopubic rami
• Right and left iliac crests
• Right and left sacral alae
• Right and left ischial spines

Q4. Which ligament extends from the sacrum to the ischial tuberosity?

• Sacrotuberous ligament
• Inguinal ligament
• Iliolumbar ligament
• Sacrospinous ligament

Q5. Which pelvic outlet dimension can increase when the coccyx moves posteriorly?

• Diameter of the obturator canal
• Width of the iliac fossa
• Depth of the acetabulum
• Anteroposterior dimension

Q6. Which joint permits the small degree of coccygeal movement that can affect pelvic outlet dimensions?

• Hip joint
• Lumbosacral joint only
• Pubic symphysis only
• Sacrococcygeal joint

Q7. How does the typical female subpubic angle compare with the typical male subpubic angle?

• It is always identical
• It is absent
• It is wider
• It is narrower

Q8. Which statement correctly distinguishes the pelvic outlet from the pelvic inlet?

• The outlet is the inferior opening of the lesser pelvis
• The outlet is bounded by the sacral promontory and arcuate lines
• The outlet separates the greater and lesser pelvis
• The outlet is the superior opening of the lesser pelvis

Q9. Which structure spans much of the pelvic outlet but contains openings for structures passing into the perineum?

• Obturator externus
• Piriformis
• Pelvic diaphragm
• Iliacus

Q10. Which typical feature of the female pelvis facilitates passage through the pelvic outlet?

• A narrower pubic arch
• A wider subpubic angle and broader outlet
• A fixed anteriorly displaced coccyx
• More medially projecting ischial tuberosities