Question

The white ramus communicans

a) carries the postganglionic fibers to the effector organs
b) arises from the dorsal root of the spinal nerves
c) has fibers that do not diverge
d) carries the preganglionic fibers into a nearby sympathetic chain ganglion

Answer 1

The white rami communicantes are myelinated structures that connect a sympathetic chain ganglion to the spinal nerve with the preganglionic sympathetic fiber. They carry the preganglionic fibers into a nearby sympathetic chain ganglion in the autonomic nervous system.

Step-by-step explanation:

The white rami communicantes, also known as ramus communicans, are myelinated structures that provide a short connection from a sympathetic chain ganglion to the spinal nerve that contains the preganglionic sympathetic fiber. These fibers are part of the autonomic nervous system, specifically the sympathetic division, which controls the body's fight-or-flight response. Unlike the unmyelinated gray rami communicantes that carry postganglionic fibers, the white rami communicantes carry preganglionic sympathetic fibers into a nearby sympathetic chain ganglion.