Beginner Lesser Splanchnic Nerve Quiz

Q1. From which thoracic sympathetic levels does the lesser splanchnic nerve most commonly arise?

• L3 to L5
• T5 to T9
• T10 to T11
• T1 to T4

Q2. What type of autonomic efferent fibers predominate in the lesser splanchnic nerve?

• Preganglionic parasympathetic fibers
• Postganglionic parasympathetic fibers
• Somatic motor fibers
• Preganglionic sympathetic fibers

Q3. From which structure is the lesser splanchnic nerve formed?

• Lumbar plexus
• Phrenic nerve
• Vagus nerve
• Thoracic sympathetic trunk

Q4. Which region commonly receives fibers from the lesser splanchnic nerve?

• Aorticorenal and superior mesenteric region
• Brachial plexus
• Cervical plexus
• Inguinal canal

Q5. Which ganglia may receive preganglionic sympathetic fibers from the lesser splanchnic nerve?

• Ciliary and otic ganglia
• Geniculate and vestibular ganglia
• Dorsal root ganglia only
• Aorticorenal and superior mesenteric ganglia

Q6. In which direction does the lesser splanchnic nerve travel after forming in the thorax?

• Inferiorly toward the diaphragm and abdomen
• Anteriorly into the sternum
• Superiorly toward the skull
• Laterally into the upper limb

Q7. Do its preganglionic sympathetic fibers normally need to synapse in the thoracic sympathetic trunk before entering the nerve?

• Yes, they become parasympathetic there
• Yes, all must synapse in the thoracic trunk
• No, they can pass through without synapsing
• No, because they never enter the sympathetic trunk

Q8. Which named thoracic splanchnic nerve usually lies superior to the lesser splanchnic nerve?

• Vagus nerve
• Least splanchnic nerve
• Pelvic splanchnic nerve
• Greater splanchnic nerve

Q9. Which type of sensory fibers can accompany the lesser splanchnic nerve?

• Visceral afferent fibers
• Somatic motor fibers to quadriceps
• Branchial motor fibers
• Special sensory fibers for vision

Q10. Which named thoracic splanchnic nerve commonly arises from T12 and lies inferior to the lesser splanchnic nerve?

• Least splanchnic nerve
• Pelvic splanchnic nerve
• Phrenic nerve
• Greater splanchnic nerve