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Nervous System

This overview explores the Central and Peripheral Nervous Systems, detailing their structures, functions, and components. The Central Nervous System (CNS) encompasses the brain and spinal cord, responsible for processing sensory information and coordinating voluntary actions. The Peripheral Nervous System (PNS) includes the Autonomic Nervous System and sensory receptors. Key brain parts are explained, such as the cerebrum for voluntary acts, cerebellum for balance, brainstem for information flow, and hypothalamus for regulating bodily functions like hunger and temperature. A brief look at neuron functions and the effects of depressants and stimulants is included.

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Nervous System

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  1. NervousSystem By: Jessica Calahorra Adrià Ribas

  2. Central NervousSystem • Itconsists of thebrain and spinalcord. • Itsendsout impulses and tellsthebrainthesensesyouperceive.

  3. PeripheralNervousSystem Itisdividedinto: • TheAutonomicNervousSystem • SensoryReceptors • 5 senses

  4. AutonomicNervousSystem Itregulatesourinvoluntaryactionslike: • Digestingfood • Keepingheartbeating

  5. Brain Itisdividedinto 5 parts. • Thecerebrum • Thecerebellum • Thebrainstem • Thethalamus • Thehypothalamus

  6. TheCerebrum • Responsable forvoluntaryacts. • Contains: intelligence, learning, judgment. • Dividedinto: Left and Righthemispheres. • Oneanalytic and theotherartistic.

  7. TheCerebellum • Located at the back of theskull. • It balances actions in themuscles.

  8. TheBrainStem • Itregulatestheflow of informationbetweenbrain and body. • Dividedintothepons and themedullaablangata.

  9. TheThalamus • Receivesmessagesfromthesenseorgans. • Ittransportsthemto a certainpart of thecerebrum.

  10. TheHypothalamus Locatedunderthalamus. Recognizes+ Analyzes: • Hunger • Thirst • Fatigue • Anger • BodyTemperature

  11. SensoryReceptors • PainReceptors • Thermoreceptors • Mechanoreceptors • Chemoreceptors • Photoreceptors

  12. Neuron • Cellsthattransmitelectricalsignalscalled impulses.

  13. Depressants • Slowdownheartrate. • Slowdownbreathingrate. • Lowerbloodpressure. • Relax muscles. • Relieftension.

  14. Stimulants Increase: • Bloodrate • Heartrate • Breathingrate

  15. Vision • Eye: senseorganthatwe use tosense light.

  16. Hearing • Ears: we can distinguishthe pitch of thevibrations in the air.

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