A dendrite is a branched extension of a neuron that receives signals from other neurons. These structures play a crucial role in transmitting information within the nervous system. Dendrites are covered in tiny receptors that detect neurotransmitters, which are chemical messengers released by other neurons. This process helps in processing and integrating information, allowing the nervous system to function effectively. Dendrites vary in shape and size, depending on the type of neuron they belong to. They can grow and change in response to experiences, a phenomenon known as neuroplasticity. This adaptability is essential for learning and memory, highlighting the importance of dendrites in the overall functioning of the brain and the nervous system.