What are the two different nervous system in body?

1. Central Nervous System (CNS)

The central nervous system consists of the brain and the spinal cord. It serves as the command center of the body, processing and coordinating all sensory information and motor responses. The brain is the most complex organ in the body and is responsible for higher-level functions such as thinking, memory, emotions, and language. The spinal cord acts as a communication pathway between the brain and the rest of the body, transmitting sensory information and motor commands to and from the brain.

2. Peripheral Nervous System (PNS)

The peripheral nervous system consists of all the nerves that extend from the central nervous system to various parts of the body, including the muscles, skin, and internal organs. The PNS is further divided into two main components:

- Somatic Nervous System: Controls voluntary movements of skeletal muscles. It receives commands from the brain and transmits them to the muscles, allowing us to move our limbs and perform various actions.

- Autonomic Nervous System: Controls involuntary functions of the body, such as heartbeat, digestion, breathing, and blood pressure. It operates without conscious control and maintains homeostasis within the body.

The autonomic nervous system is further subdivided into two branches:

- Sympathetic Nervous System: Prepares the body for "fight or flight" response during stressful situations. It increases heart rate, dilates pupils, and redirects blood flow to muscles and vital organs.

- Parasympathetic Nervous System: Promotes "rest and digest" activities during calm and relaxed states. It slows heart rate, stimulates digestion, and conserves energy.