List down the structural division of the nervous system?

1. Central Nervous System (CNS)
- Brain
- Spinal cord

2. Peripheral Nervous System (PNS)
- Somatic nervous system
- Autonomic nervous system
- Sympathetic nervous system
- Parasympathetic nervous system

Central Nervous System (CNS)
- Brain
- Spinal cord

Peripheral Nervous System (PNS)
- Somatic Nervous System:
- Controls voluntary muscle movements and sensory information from the body to the CNS
- Consists of:
- Spinal nerves
- Cranial nerves
- Autonomic Nervous System:
- Controls involuntary functions such as heart rate, blood pressure, and digestion
- Subdivided into:
- Sympathetic Nervous System: "Fight-or-flight" response
- Parasympathetic Nervous System: "Rest-and-digest" response