![]() ![]() These branches end at junctions called synapses. Since axons can have numerous branches, nerve impulses can be transmitted to numerous cells. Nerve impulses are received at neuronal dendrites, passed through the cell body, and are carried along the axon to the terminal branches. Nerve impulses, or action potentials, are electrochemical impulses that cause neurons to release electrical or chemical signals that initiate an action potential in another neuron. These nerves send signals between the brain, spinal cord, and other body organs via nerve impulses. Information is communicated among nervous system structures through nerve signals. Axons and dendrites are bundled together into what are called nerves. They have many synapses in order to receive signal messages from nearby neurons. Dendrites are usually more numerous, shorter, and more branched than axons. Dendrites typically carry signals toward the cell body. ![]() Axons end at junctions known as synapses. Gaps between the myelin sheath are called Nodes of Ranvier. These cells form the myelin sheath which indirectly assists in the conduction of impulses as myelinated nerves can conduct impulses quicker than unmyelinated ones. Some axons are wrapped in an insulating coat of glial cells called oligodendrocytes and Schwann cells. They are long nerve processes that may branch out to convey signals to various areas. Axons typically carry signals away from the cell body.Nerve processes are "finger-like" projections from the cell body that are able to conduct and transmit signals. The cell body produces proteins needed for the construction of other parts of the neuron. The central cell body is the process part of a neuron and contains the neuron's nucleus, associated cytoplasm, organelles, and other cell structures. Neurons contain the same cellular components as other body cells. A neuron consists of two major parts: a cell body and nerve processes. ![]()
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