What type of nervous system includes all nerves outside the central nervous system?

The correct answer is the peripheral nervous system. This system includes all the nerves that lie outside the brain and spinal cord, which are the components of the central nervous system. The peripheral nervous system is crucial because it connects the central nervous system to limbs and organs, facilitating communication between the brain and the rest of the body.

In addition to encompassing sensory and motor nerves, the peripheral nervous system is further divided into the somatic nervous system, which governs voluntary movements, and the autonomic nervous system, which regulates involuntary bodily functions like heart rate and digestion. However, the term "peripheral nervous system" itself directly refers to all nerves outside the central nervous system, making it the most comprehensive and accurate choice.