What function do dendrites primarily serve?

Dendrites primarily serve the function of receiving signals from other neurons. They are the branched extensions of a neuron that receive input from the chemical signals released by adjacent neurons at synapses. This input typically takes the form of neurotransmitters, which bind to receptors on the dendritic membrane, leading to electrical changes in the neuron. This process allows the neuron to collect and integrate information from various sources, making it crucial for communication within the nervous system.

The structure of dendrites, including their extensive branching, enhances their ability to capture signals from multiple neurons simultaneously. This is essential for the neuron's function in processing information and forming complex networks. As a result, dendrites play a key role in the overall signaling and communication processes that are fundamental to cognition, reflexes, and various bodily functions.