Advanced Hypogastric Plexus Quiz

Q1. Which combination provides the major neural contributions to the inferior hypogastric plexus?

• Ilioinguinal, genitofemoral, and pudendal nerves
• Femoral, obturator, and sciatic nerves
• Hypogastric nerves, pelvic splanchnic nerves, and sacral splanchnic nerves
• Phrenic, vagus, and greater splanchnic nerves

Q2. Which pathway carries parasympathetic fibers from the sacral spinal cord into the inferior hypogastric plexus?

• T5 to T9 through the greater splanchnic nerves
• S2 to S4 through the pudendal nerve only
• S2 to S4 through the pelvic splanchnic nerves
• L2 to L4 through the femoral nerve

Q3. Visceral pain from pelvic organs located superior to the pelvic pain line generally follows which fibers toward the spinal cord?

• Somatic motor fibers
• Special visceral efferent fibers
• Parasympathetic fibers exclusively
• Sympathetic fibers

Q4. Visceral pain from pelvic organs located inferior to the pelvic pain line generally accompanies which autonomic pathway?

• Lumbar splanchnic nerves
• Greater splanchnic nerves
• Femoral nerves
• Pelvic splanchnic nerves

Q5. Injury to the pelvic parasympathetic fibers associated with the inferior hypogastric plexus could most directly impair which pair of functions?

• Knee extension and hip flexion
• Shoulder abduction and elbow flexion
• Bladder emptying and erection
• Foot dorsiflexion and plantar flexion

Q6. Why is the inferior hypogastric plexus clinically important during radical pelvic surgery?

• Damage primarily causes shoulder weakness
• Damage primarily eliminates sensation from the foot
• Damage can cause urinary, bowel, and sexual dysfunction
• Damage primarily causes paralysis of the quadriceps

Q7. During nerve-sparing prostate surgery, preservation of autonomic fibers from which pelvic plexus is particularly important for erectile function?

• Lumbar plexus
• Brachial plexus
• Cervical plexus
• Inferior hypogastric plexus

Q8. The cavernous nerves responsible for autonomic innervation of erectile tissues arise primarily from which plexus?

• Lumbar plexus
• Sacral somatic plexus only
• Inferior hypogastric plexus
• Celiac plexus

Q9. Which statement best describes the relationship between the superior and inferior hypogastric plexuses?

• The superior plexus gives rise to hypogastric nerves that contribute to the inferior plexuses
• The superior plexus is a somatic plexus derived from the lumbar plexus
• The inferior plexuses unite to form the femoral nerves
• The two plexuses have no anatomical connection

Q10. Which statement best integrates the organization and function of the hypogastric plexuses?

• They supply only the lower limbs and have no visceral function
• They form interconnected autonomic pathways that distribute and integrate neural supply to pelvic viscera
• They are purely somatic networks controlling pelvic skeletal muscles
• They contain only parasympathetic fibers and no sympathetic pathways