Question

Which spinal nerves go directly to the tissues they supply without forming a plexus?

a. C1 through C4
b. C4 through T1
c. T2 through T12
d. L1 through L5
e. S1 through S5

Answer 1

The thoracic spinal nerves, T2 through T12, go directly to the tissues they supply without forming a plexus.

Step-by-step explanation:

The spinal nerves that go directly to the tissues they supply without forming a plexus are the thoracic spinal nerves T2 through T12. These spinal nerves emerge from the spinal cord and are not reorganized through a plexus; instead, they give rise to the intercostal nerves directly. The other spinal nerves -- cervical, lumbar, and sacral -- reorganize through their respective plexuses (cervical, brachial, lumbar, and sacral plexuses) before supplying their target tissues.