sense - The abilities our body uses to understand what's happening around us, like seeing, hearing, touching, tasting, and smelling., nerve - Bundles of special cells that carry messages between your brain and the rest of your body., optic nerve - The nerve that sends visual information from your eyes to your brain, helping you see., neurons - Nerve cells that carry messages to and from the brain and other parts of the body., proprioreception - The sense that helps you know where your body parts are and how they’re moving, even without looking., thermoreceptor - Special cells in your skin that detect changes in temperature, helping you feel if something is hot or cold., cell body - The main part of a neuron that contains the nucleus and helps keep the neuron healthy., dendrite - Branch-like parts of a neuron that receive signals from other neurons., axon - A long, thin part of a neuron that sends signals away from the cell body to other neurons or muscles., axon terminal - The end part of an axon where the neuron sends out signals to other neurons or muscles., synaptic cleft - The tiny gap between two neurons where signals are passed from one neuron to another., electrical impulse - A quick, electrical signal that travels along neurons to carry messages., chemical impulse - Signals sent between neurons using chemicals called neurotransmitters., neurotransmitter - Chemicals released by neurons that help transmit signals across the synaptic cleft to other neurons or cells., diffusion - The process where substances spread from an area of high concentration to an area of low concentration, like neurotransmitters spreading across the synaptic cleft., vesicle - Tiny, bubble-like structures inside neurons that store neurotransmitters and release them when needed.,

Grade 9 Bio -- Nerve Cells

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