THE NERVOUS SYSTEMBy Sam Lapp, Felicia Fulton, Luke

Miller

Functions of the Nervous System

Is body system that manages bodily activity by sending and receiving signals between the brain, spinal chord and nerves

The central nervous system contains the brain and spinal cord

The peripheral nervous system is a network of nerves branching out to all parts of the body

PARTS OF THE NERVOUS SYSTEM

Brain, Spinal Cord and Nerves

The Brain

Mass of specialized nerve tissue Controls all physical functions, thoughts

and emotions Receives information about

events/conditions from nerves, sends instructions to body systems

Parts of the Brain

Cortex- outer layer, responsible for conscious thought

Cerebellum- small bulb at base of hemispheres, responsible for balance and body movement

Hindbrain- leading to spinal cord, responsible for breathing and basic bodily functions

many smaller subdevisions

Spinal Cord

Main communication line between brain and nerves

Runs down spine

Nerves

Carry messages back and forth between the brain and body tissue

Spread out in a network to all parts of the body

DISEASESCauses, Symptoms and Treatment

Diseases and disorders

Encephalitis Meningitis Tropical spastic paraperesis Arachnoid cysts Huntington’s Alzheimer’s locked in syndrome Parkinson’s Tourette’s syndrome Multiple sclerosis

Causes

Include: Trauma Infections Degeneration Structural defects Tumors Autoimmune disorders Stroke

Symptoms

Persistent headache Loss of feeling Memory loss Loss of muscle strength Tremors Seizures Slurred speech

Treatment

Includes methods of Surgery Rehabilitation Prescribed medicine