The white rami communicantes contain what kind of fibers? a. preganglionic parasympathetic, b. postganglionic parasympathetic, c. preganglionic sympathetic, d. postganglionic sympathetic.

Video transcript

Hey, everyone. Let's take a look at this question together. Post ganglionic sympathetic fibers in the autonomic nervous system are found in. What is it? Answer choice. A white rami communicant answer choice B Gray Rami communicant answer choice C dorsal rami or answer choice D ventral rami. Let's work this problem out together to try to figure out where the post ganglionic sympathetic fibers are located. Since we are talking about the post ganglionic sympathetic fibers, we can recall that those postganglionic sympathetic fibers are carried by the un myelin nerve fibers from the sympathetic ganglia to the spinal nerves. And since we are talking about the unmyelinated nerve fibers, specifically, we note that the unmyelinated nerve fibers are found in the ray communicant that are gray since the unm myelination is the reason for that gray color, which means that answer choice. B gray Rami canes is the correct answer. Since the post gangle sympathetic fibers in the autonomic nervous system are carried by those unmyelinated nerve fibers, which are the Great Rami canti. I hope you found this video to be helpful. Thank you and goodbye.