The Nervous System

• Nervous System is a System of cells, tissues and organs that regulates the body's responses to stimuli.
• Central Nervous System 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 the largest upper part of the brain that controls activity and thought; intelligence, memory and language.
• Temporal lobe having to do with memory, emotion, hearing and language.
• Frontal lobe having to do with decision-making, problem-solving and planning.
• Parietal lobe concerned with reception and processing of sensory information from the body.
• Occipital lobe concerned with vision.
• Cerebellum the part under the cerebum that controls posture, balance, and coordination.
• Brain Stem is the part that connects the brain to the spiral cord and controls automatic functions such as breathing digestion, heart rate, and blood pressure.
• Spinal Cord serves as a channel for signals between the brain and the rest of the body and controls simple musculoskeletal reflexes without input from the brain.
• Peripheral Nervous System connects the central nervous system to the organs and limbs.
• Spinal Cord connects the brain and the body.
• Spinal Cord transmits impulses all over the body to and from the brain.
• Spinal Cord is responsible for involuntary movements (e.g. reflexes)
• Somatic Nervous System regulates the activities that are under conscious control.
• Spinal Nerves carry motor and sensory signals between the Spinal Cord and the body.
• Cranial Nerves is the nerve fibers that carry information into and out of the brain Stem.
• Autonomic Nervous System regulates all activities that are involuntary or done without conscious wil.
• Sympathetic "flight or fight response"
• Sympathetic controls the internal functions of the body in times of stress.
• Parasympathetic "rest and digest"
• Parasympathetic controls the internal functions at rest
• Sensory or affective neurons carry impulses from the sense organs to the brain and the Spinal Cord.
• Spinal Cord is composed of grey and white matter.
• Motor or effective neurons carry impulses from the brain and Spinal Cord to the muscles.
• Associative neurons located in the CNS, analyze and interpret the data or impulses.