The peripheral nervous system consists of peripheral nerves located throughout the rest of the body.

• A. Peripheral nerves located throughout the rest of the body
• B. Brain and spinal cord
• C. Hormonal glands
• D. Autonomic ganglia

Answer: (A)

The key idea is that the peripheral nervous system includes all nerves and nerve fibers outside the brain and spinal cord. These nerves extend to the limbs and organs, carrying sensory information to the brain and motor commands from it, so signals can be processed and responses executed. The brain and spinal cord are the central nervous system, not part of the PNS. Hormonal glands belong to the endocrine system rather than the nervous system. Autonomic ganglia are structures within the peripheral nervous system, but the defining description of the PNS is its network of peripheral nerves throughout the body. So describing the peripheral nerves located throughout the rest of the body best matches what the PNS encompasses.