Intermediate Coccygeus Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. Which description best characterizes the direction of the coccygeus muscle fibers?
- Laterally and anteriorly toward the femur
- Anteriorly toward the pubic symphysis only
- Vertically toward the lumbar vertebrae
- Medially and posteriorly toward the sacrum and coccyx
Q2. Which surface of the sacrospinous ligament is closely related to coccygeus?
- Abdominal surface of the inguinal ligament
- Anterior surface of the pubic symphysis
- Pelvic surface
- Femoral surface
Q3. Which bony landmark provides the lateral attachment of coccygeus?
- Ischial spine
- Iliac tubercle
- Ischial tuberosity
- Pubic crest
Q4. Which action may the coccygeus perform on the coccyx?
- Elevate the sacral promontory
- Rotate the coccyx laterally around the hip joint
- Abduct the coccyx
- Draw the coccyx anteriorly
Q5. What happens to the role of coccygeus when intra-abdominal pressure rises?
- It extends the lumbar vertebral column
- It depresses the diaphragm of the thorax
- It opens the pelvic inlet
- It helps resist downward pressure on pelvic contents
Q6. Which portion of the pelvic diaphragm is primarily formed by coccygeus?
- Superior lumbar portion
- Posterior portion
- Anterior thigh portion
- Anterior abdominal portion
Q7. Which muscle lies immediately anterior to coccygeus within the pelvic diaphragm?
- Levator ani
- Obturator externus
- Gluteus maximus
- Piriformis
Q8. Which spinal nerve levels are most closely associated with the motor supply of coccygeus?
- L2 and L3
- T10 and T11
- S4 and S5
- L1 and L2
Q9. Why is the coccygeus sometimes called the ischiococcygeus?
- It passes through the obturator canal
- It extends from the ilium to the femur
- Its attachments extend from the ischial region toward the coccyx
- It originates from the pubic symphysis
Q10. Which statement best describes the relationship between coccygeus and the sacrospinous ligament?
- They have no anatomical relationship
- They are closely related and follow a similar course from the ischial spine toward the sacrum and coccyx
- They lie on opposite sides of the abdominal cavity
- The ligament passes through the muscle to reach the femur