Cette image peut avoir des imperfections car il s’agit d’une image historique ou de reportage.
Detail of neural connections illustrated by Cajal. Santiago RamÌ_n y Cajal (1852-1934) was a Spanish pathologist, histologist, neuroscientist, and Nobel laureate (1906). His pioneering investigations of the microscopic structure of the brain were original: he is considered by many to be the father of modern neuroscience. He was skilled at drawing, and hundreds of his illustrations of brain cells are still used for educational purposes today. A neuron is an electrically excitable cell that processes and transmits information by electrical and chemical signaling. Chemical signaling occurs via synapses, specialized connections with other cells. Neurons connect to each other to form neural networks. Neurons are the core components of the nervous system, which includes the brain, spinal cord, and peripheral ganglia.
