Nervous system

• The nervous system is broken up into 2 parts; the central nervous system (CNS) and the peripheral nervous system (PNS)
• The Central Nervous System (CNS) is broken up into the brain and spinal cord
• The spinal cord transfers messages between the brain and body
• The peripheral nervous system is broken down into the autonomic nervous system and the somatic nervous system
• The autonomic nervous system carries out homeostasis keeping the internal conditions of the body constant
• The autonomic nervous system is broken down into the sympathetic and parasympathetic divisions
• the sympathetic division of the autonomic nervous system carries out fight or flight
• the parasympathetic division of the autonomic nervous system carries out rest and digest
• the somatic nervous system communicates sense organs with voluntary muscles
• 6 main brain regions; frontal lobe, parietal lobe, temporal lobe, occipital lobe, brain stem, and cerebellum
• The Frontal lobe controls logic and thinking
• the parietal lobe controls spatial navigation
• the temporal lobe processes auditory information
• the occipital lobe processes visual information
• the brain stem controls involuntary functions
• the cerebellum controls coordination
• both the brain stem and spinal cord control involuntary functions EG brain stem controls breathing and the spinal cord controls the reflex arc
• the brain allows for conscious awareness while the spinal cord carries out simple reflex responses
• the brain has multiple regions that carry out many different functions while the spinal cord only has one main function
• the somatic and autonomic nervous system both respond to external stimuli
• the autonomic nervous system consists of two subsections while the somatic does not
• the somatic nervous system has both sensory and motor pathways while the autonomic only has motor pathways
• the autonomic nervous system controls internal organs while the somatic nervous system controls muscle movement
• The endocrine system consists of a network of glands that secrete hormones into the blood stream that work slower than nerve impulses