Dendrites are tree-like structures found on neurons, which are the cells that make up the nervous system. They receive signals from other neurons and transmit this information to the cell body. Dendrites play a crucial role in communication within the brain and throughout the body. These structures can vary in shape and size, allowing them to connect with many other neurons. The more dendrites a neuron has, the more information it can process. This connectivity is essential for functions such as learning, memory, and overall brain activity, highlighting the importance of dendrites in the nervous system.