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The Nervous System Kaylee De La Cruz P. 2 (Major types of…
The Nervous System Kaylee De La Cruz P. 2
Central Nervous System (CNS)
Includes Brain and Spinal Chord
Is the main control center for this system
Diseases
Meningitis
Inflammation of the meninges
Microcephaly
Condition involving the formation of a small brain
Myoclonus
Sudden contraction of a muscle;may be due to diseases of the reticular formation or cerebellum.
Psychoses
Severe cases of mental illness
Major types of Neurotransmitters
dopamine
GABA
serotonin
glutamate
norepinephrine
endorphins
acetylcholine
Major Lobes of the Brain
Paretial
processes sensory input, interprets visual information, processes language and math
Temporal
processes auditory input
Frontal
Controls emotional expression, problem solving, memory, language, judgment, and sexual behaviors
Occipital
controls visual perception
Anatomy of the spinal cord
12 thoracic vertebrae
5 lumbar vertebrae
5 sacral vertebrae
7 cervical vertebrae
Major Structures
Cerebellum
Receives information from the body's sensory system
Cerebrum
Is associated with thought and action
Meninges
Pia Mater
most delicate innermost layer of the meninges
Arachnoid Mater
thin layer closely connected to the pia mater
Dura Mater
Toughest, leathery, outermost layer
Peripheral Nervous System
Includes Nerves that branch off of the brain and spine
Sensory (Afferent): Picks up stimuli
Motor (Efferent); Reacts to stimuli
Somatic (Voulntary): Moves Skeletal Muscles
Autonomic (Involuntary): Moves cardiac muscles, and controls things like blinking
Sympathetic System: reaction to stimuli
Parasympathetic System: Brings body back to original state( relaxes it)
Major functions of the Nervous System
to collect sensory information from the body and surroundings
to process sensory information
to appropriately respond to sensory information
Drugs that interfere with the Nervous system
Methamphetamine
LSD
Cocaine
Ecstasy
Alcohol
Heroin