Beginner Lesser Splanchnic Nerve Quiz

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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