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Nervous System - Britane Olvera Per.2 - Coggle Diagram
Nervous System - Britane Olvera Per.2
Major functions of the nervous system
Sensory Input
Information gathered by sensory receptors about internal and external changes.
Integration
Processing and interpretation of sensory input.
Motor Output
Activation of effector organs (muscles and glands) produces a response.
Nervous System: Master controlling and communicating system of body.
Major divisions and subdivisions of the nervous system (include all subdivisions of CNS
and PNS)
Central nervous system (CNS)
Brain and spinal cord of dorsal body cavity.
Integration and control center: Interprets sensory input and dictates motor output .
Peripheral nervous system (PNS)
The portion of nervous system outside CNS.
Consists mainly of nerves that extend from brain and spinal cord.
Has two functional divisions:
Sensory (afferent) division
Involves Somatic sensory fibers which convey impulses from skin, skeletal muscles, and joints to CNS .
Visceral sensory fibers which convey impulses from visceral organs to CNS.
Motor (efferent) division
Somatic nervous system (voluntary) is the conscious control of skeletal muscles.
Autonomic nervous system (involuntary) helps regulate smooth muscle, cardiac muscle, and glands.
Sympathetic
Parasympathetic
Tissues (structure & function of neurons and neuroglia)
Classification of neurons
Connective Tissue Coverings
Major parts and functions of the brain
Action potential & the Nerve Impulse
Major parts and functions of the spinal cord
Cranial nerves
Spinal nerves
Neurotransmitters
Compare & contrast the autonomic nervous system
Reflex arc (major parts & functions)
Disorders/Diseases
Drugs of abuse (Mouse Party)
Heroine
This drug interferes with the opiate and dopamine nuerotransmitter.
Heroine mimics natural opiate and binds to opiate receptors which turns off dopamine inhibition.
This creates a feeling of sedation and well being, Affects pain signals, stress response, and emotional attachment.
Ecstasy
Impacts the serotonin neurotransmitter.
Alters the transporter and becomes confused. Also starts to do its job in reverse.
Affects users mood, sleep, perception, and appetite. Also is slightly addictive.
Marijuana
Methamphetamine
Affects dopamine transmitters.
When entering dopamine vesicles it forces the dopamine molecules out. Causing the transporters to start working in reverse. Overstimulating the cell.
Highly addictive and makes user feel intense pressure and exhilaration.
Alcohol
Interferes with glumate and GABA inhibitory neurotransmitter.
Has a sedative punch and interacts with GABA recpetors and makes them more inhibitory. Prevents glumate from exciting the cell.
Affects memory formation, decision making, and impulse control.
Cocaine
Interferes with dopamine transmitters
Blocks transporters which leaves dopamine trapped in the synaptic cleft. Which dopamine binds again and again.
Affects the brain controlling voluntary movements makes users fidgety and unable to be still.
LSD