Intermediate Pelvic Outlet Quiz

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

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

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

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

Q3. Which structures form the pubic arch?

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

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

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

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

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

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

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

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

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

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

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

• Piriformis
• Iliacus
• Pelvic diaphragm
• Obturator externus

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

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