1. The signal that passes along the nerve fiber is called an action potential. It is an electrical impulse that travels down the neuron, enabling communication between nerve cells and triggering responses in muscles and other tissues.

    The signal that passes along the nerve fiber is called an action potential. It is an electrical impulse that travels down the neuron, enabling communication between nerve cells and triggering responses in muscles and other tissues.

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  2. An individual nerve cell can be over a meter long, as seen in some human neurons, such as those extending from the spinal cord to the toes.

    An individual nerve cell can be over a meter long, as seen in some human neurons, such as those extending from the spinal cord to the toes.

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  3. The two main types of processes that arise from the neuron's cell body are dendrites, which receive signals from other neurons, and axons, which transmit signals to other neurons, muscles, or glands.

    The two main types of processes that arise from the neuron’s cell body are dendrites, which receive signals from other neurons, and axons, which transmit signals to other neurons, muscles, or glands.

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  4. The cells of nervous tissue are called neurons and glial cells. Neurons are responsible for transmitting nerve impulses, while glial cells provide support, protection, and nourishment to neurons.

    The cells of nervous tissue are called neurons and glial cells. Neurons are responsible for transmitting nerve impulses, while glial cells provide support, protection, and nourishment to neurons.

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  5. The brain, spinal cord, and nerves are composed of neurons and glial cells, which form the nervous tissue responsible for transmitting signals and supporting neural function throughout the body.

    The brain, spinal cord, and nerves are composed of neurons and glial cells, which form the nervous tissue responsible for transmitting signals and supporting neural function throughout the body.

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