Nervous System

• The central nervous system contain the brain and spinal cord.
• The peripheral nervous system contains all the nerves not in the brain and spinal cord.
• The peripheral nervous system is split into the autonomic and somatic nervous systems. From there, the autonomic is split into the sympathetic and parasympathetic nervous systems. The somatic nervous system is split into sensory and motor.
• Autonomic is the part of the nervous system that controls involuntary functions such as heart rate and digestion.
• Somatic is responsible for voluntary motion such as moving your arm.
• The sympathetic nervous system is the fight or flight response, prepares the body for action and sends messages to central nervous system.
• Parasympathetic nervous system is the rest and digest response, slows down bodily processes when we are relaxed.
• Sensory nervous system contains nerves that take signals from senses and sends those messages to central nervous system.
• Motor nervous system: A system of neurons that carry impulses from the CNS to the muscles and glands.