Word Roots and Origins

synapse from the Greek synaptein, meaning "to fasten together"

figure 49-1

Neurons transmit information throughout the body via chemical and electrical signals. This stellate neuron is named for its starlike shape. (SEM, 26,000x)

figure 49-1

Neurons transmit information throughout the body via chemical and electrical signals. This stellate neuron is named for its starlike shape. (SEM, 26,000x)

figure 49-2

Neurons consist of dendrites, which bring signals toward the cell body, and axons, which carry signals away from the cell body. At the tip of the axon, the axon terminal makes contact with a target cell, such as a muscle cell, gland cell, or other neuron, at a synapse.

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