Brain Nervous System Cheat Sheet.pdf

ervous System — One-Page Cheat Sheet

຅ Brain & N

Brain Functions

Controls thoughts, feelings, memory, movement, and automatic body functions.Like a computer; nervous system is the network sending messages.

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Nervous System Parts

Central Nervous System (CNS): Brain + Spinal cordPeripheral Nervous System (PNS): All other nerves

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Brain Sections

Forebrain: Cerebrum → intelligence, personality, emotions, speech, movementMidbrain: Coordinates messages between brain and spinal cordHindbrain: Cerebellum → balance; Brainstem (pons + medulla) → breathing, heartbeat, digestion

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Neurons & Messages

Sensory neurons: Send info to brainMotor neurons: Send commands from brainNeural pathways form with practice → learning & memory

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Brain Hemispheres

Left: Logical, analyticalRight: Creative, intuitiveLeft side controls right body, right side controls left body

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Autonomic Nervous System

Sympathetic: Stress response (ޯght or ްight)Parasympathetic: Rest and digest

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Five Senses

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Sight: Eye → retina → brainHearing: Ear → eardrum → brainTaste: Tongue → taste buds → brainSmell: Nose → olfactory cells → brainTouch: Skin → sensory receptors → brain

Quick Tips

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Practice strengthens neural pathways → easier learningMemory stored in cortex and inner brain regions (hippocampus, amygdala)Automatic functions keep you alive without thinking