nervous system

• nervous system connects all body parts and transmits signals from one part to another
• nervous system is a system of cells, tissues and organs that regulates the body's responses to internal and external stimuli
• central nervous system or cns serves as the main processing center for the entire nervous system
• brain is an organ located within the skull that functions as organizer and distributor of information for the body
• cerebrum is a part of the brain with large upper part of the body it controls the activity and thought
• cerebellum is a part of the brain under the cerebrum it controls posture balance and coordination
• brainstem is a part of the brain that connects the brain to the spinal cord it controls automatic functions such as breathing heart rate and blood pressure
• spinal cord serves as the channel for signals between the brain and the rest of the body
• peripheral nervous system or pns connects the central nervous system to the organs and limbs
• somatic nervous system is associated with the voluntary control of body movements
• spinal nerves are nerves that carry motor and sensory signals between the spinal cord and the body
• cranial nerves are nerve fibers that carry information into and out of the brain
• automatic nervous system is associated with the involuntary control of the body movements
• sympathetic is activated when the body is in or dynamic role or stress
• parasympathetic maintains body functions and restores the body to normal or relaxed mode