Cajal's Principles of Neuron Structure

Cajal's Principles of Neuron Structure describe how nerve cells (neurons) are organized. He proposed that neurons are individual units, not a continuous web, with a cell body containing the nucleus. Neurons have long extensions called axons and dendrites, which connect to other neurons at specialized contact points called synapses. These connections are separate, allowing signals to pass directionally. This framework showed that the nervous system is made up of many individual neurons communicating through these specialized contacts, forming the basis for understanding how our nervous system processes information.