Posted by lae2 on September 14, 2009 at 14:38:08:
Questions for the Pelvic Nerves and Vessels
These questions were not submitted by the lecturer.
True/False
1. Sacral splanchnic nerves and pelvic splanchnic nerves are, in fact, the same nerves.
2. Parasympathetic preganglionic cell bodies that mediate contraction of the detruser muscle are located in the intermediolateral cell column at levels L1-2.
3. Paristalsis of the hindcut is driven by the parasympathetic division of the autonomic nervous system.
4. Relaxation of the external anal sphincter and the puborectalis is driven by the somatic nervous system.
5. The helicine arteries dilate in response to parasympathetic activity.
6. The bulbospongiosus and the ischiocavernosus muscles contract in response to the somatic nervous system.
7. Paristalsis of the vas deferens is driven by sympathetic nerves from the pelvic plexus.
8. The cerebral release mechanism for urination is mostly driven by the somatic nervous system.
9. Both the true urethral sphincter and the function urethral sphincter (uvula) are driven by the somatic nervous system.
10. Sensation from the glans of the penis/clitoris is mediated by the autonomic nervous system.
11. The sacral splanchnic nerves contribute to the inferior hypogastric plexus.
12. The pelvic splanchnic nerves contribute to the inferior hypogastric plexus.
13. The right and left hypogastric nerves contribute to the inferior hypogastric plexus.
14. Gray rami from the sacral sympathetic trunk contribute to the inferior hypogastric plexus.
15. White rami from the sacral sympathetic trunk contribute to the inferior hypogastric plexus.
16. Nerve fibers derived from the lumbar splanchnic nerves contribute to the inferior hypogastric plexus.
17. The uterine autonomic plexus receives contributions from the inferior hypogastric plexus.
18. The uterine autonomic plexus receives contributions from the internal iliac plexus.
19. The hypogastric nerves contain both pre- and post-ganglionic sympathetic nerves. (this is true)
20. The cavernous nerves pass through the urogenital diaphragm to arrive in the perineum.
21. Pelvic splanchnic nerves, by way of the inferior hypogastric plexus, contribute to the cavernous nerves.
22. Surgical resection of the prostate may damage the cavernous nerves.
23. Paristalsis at the left colic flexure is indirectly inhibited by lumbar splanchnic nerves.
24. Paristalsis at the left colic flexure is indirectly activated by sacral splanchnic nerves.