Beginner Inferior Mesenteric Plexus Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. Around which artery is the inferior mesenteric plexus primarily organized?
- External iliac artery
- Celiac trunk
- Renal artery
- Inferior mesenteric artery
Q2. Which gastrointestinal territory is most closely associated with the inferior mesenteric plexus?
- Hindgut
- Midgut only
- Foregut only
- Thoracic esophagus only
Q3. Which sympathetic nerves provide important input to the inferior mesenteric plexus?
- Pudendal nerves
- Phrenic nerves
- Lumbar splanchnic nerves
- Pelvic splanchnic nerves only
Q4. Which ganglion is closely associated with the inferior mesenteric plexus?
- Otic ganglion
- Geniculate ganglion
- Ciliary ganglion
- Inferior mesenteric ganglion
Q5. How do many sympathetic fibers reach hindgut organs after passing through the inferior mesenteric plexus?
- Through the phrenic nerve
- Through the brachial plexus
- Along periarterial plexuses
- Through the femoral nerve
Q6. Which colonic segment receives autonomic fibers through branches associated with the inferior mesenteric plexus?
- Descending colon
- Ascending colon
- Duodenum proximal to the major papilla
- Jejunum
Q7. Which other colonic segment is closely associated with the inferior mesenteric plexus?
- Proximal jejunum
- Sigmoid colon
- Cecum
- Ascending colon
Q8. Which parasympathetic nerves supply the hindgut territory associated with the inferior mesenteric plexus?
- Pelvic splanchnic nerves
- Greater thoracic splanchnic nerves
- Phrenic nerves
- Lesser thoracic splanchnic nerves
Q9. What is a common effect of sympathetic activity on hindgut motility?
- Marked increase in peristalsis
- No effect on smooth muscle
- Voluntary contraction of the colon
- Decreased motility
Q10. Which fibers may carry pain from hindgut viscera through sympathetic autonomic pathways?
- Special sensory fibers for vision
- Somatic motor fibers
- Visceral afferent fibers
- Branchial motor fibers