Question

Which of the following statements is true about the autonomic nerve fibers?

1) They contain autonomic nerve fibers.
2) They supply the posterior body trunk.
3) They supply all of the body except the posterior.
4) They branch and form nerve plexuses except for T2-T12.
5) They supply each muscle with fibers from more than one spinal nerve.

Answer 1

The following statements is true about the autonomic nerve fibers is they branch and form nerve plexuses except for T2-T12.

The correct answer is options 4.

Step-by-step explanation:

The statement that is true about autonomic nerve fibers is that they branch and form nerve plexuses except for T2-T12. Autonomic nerve fibers, which include components of the autonomic nervous system, do not supply the posterior body trunk specifically but participate in the regulation of visceral functions via the sympathetic and parasympathetic divisions.

Most spinal nerves, except for those between T2 and T12, form part of these plexuses, which are networks of intersecting nerves. The cervical plexus, for instance, is composed of axons from spinal nerves C1 through C5 and supplies nerves to the posterior head and neck, as well as the diaphragm.

The brachial plexus, derived from spinal nerves C4 through T1, supplies nerves to the arm, while the lumbar plexus and the sacral plexus supply nerves to the anterior and posterior leg, respectively. The autonomic structures found in nerves include sympathetic and parasympathetic ganglia, which are essential for autonomic responses. So, The correct answer is options 4.