In Learning and Memory, Sprenger uses the hand as an example for the structure of the neuron, saying, “The cell body can be compared to the palm of the hand. Information enters the cell body through appendages called dendrites, represented by fingers. Like fingers, dendrites are constantly moving and searching for new information. If the neuron needs to send information to another neuron, the message is sent through the axon, represented by the pulse. When a neuron sends information down its axon to communicate with another neuron, it never actually touches the other neuron.” As neurons establish connections with other neurons, dendrites are created, strengthening the network (Sprenger 2). Although the brain has approximately 100 billion neurons, each neuron can have up to 10,000 connections with other neurons. This means that the brain has over a quadrillion connections. As previously mentioned, learning is “two neurons communicating with each other”. If every connection is a communication and there are more than a quadrillion connections, then the brain is a communication powerhouse (Sprenger