Washington Esthetician State Board Practice Exam

Which part of a neuron receives impulses from other neurons?

1. Axon

2. Dendrites

3. Cell body

4. Synaptic terminals

The correct answer is: Dendrites

Dendrites are the part of a neuron that receives impulses from other neurons. They serve as the primary sites for receiving synaptic signals, which can be excitatory or inhibitory. Dendrites have a tree-like structure, with numerous branches that increase their surface area, allowing for the reception of a large number of signals from various other neurons. When a signal is received at the dendrites, it can then lead to an electrical impulse being generated in the neuron, which travels through the axon to communicate with other neurons. This process is essential for the transmission of information throughout the nervous system and plays a critical role in how nerves communicate and process information. In contrast, other parts of the neuron serve different functions: the axon transmits impulses away from the neuron; the cell body contains the nucleus and maintains the neuron's health; and synaptic terminals are involved in the release of neurotransmitters to transmit signals to the next neuron.