Synaptic connections are the points where neurons communicate with each other. These connections occur at structures called synapses, where the sending neuron releases neurotransmitters that travel across a small gap to bind with receptors on the receiving neuron. This process allows signals to be transmitted throughout the nervous system, enabling various functions such as movement, sensation, and thought. The strength and efficiency of synaptic connections can change over time, a phenomenon known as synaptic plasticity. This adaptability is crucial for learning and memory, as it allows the brain to reorganize itself based on experiences. Overall, synaptic connections play a vital role in how information is processed in the brain.