TEAS 7 Scientific Reasoning Practice Test 2026 – Complete Exam Prep

The ability to transmit impulses away from the cell body is mainly the axon. In a neuron, dendrites pick up signals from other cells, and the nucleus within the cell body holds the genetic material and manages cellular functions. The axon then carries the electrical signal, called an action potential, away from the cell body toward the axon terminals, where neurotransmitters are released to relay the message to the next neuron. The synapse is the junction where this communication occurs, not the primary path for sending signals away. So, the axon is the structure that primarily moves impulses away.