Sunday, 4 March 2018

The brain

The brain and spinal cord together form the central nervous system (CNS). 

 

Components  

 

Microscopic structure

Cognition and memory rely on neurons (nerve cells) and the synapses (connections) between them. The genetic (the combination of genes in the DNA) and epigenetic (the regulation of which genes are active or inactive) mechanisms in each neurone regulate its behaviour. On top of this we have the global features of the brain such as the number of neurons, the number of glial cells (support cells), and the relationship between neurons. Every brain has a unique "network" or "web" of neuronal connections. Your memories, your skills, your behaviours, your processing patterns, are the gross product of information stored in the DNA of each microscopic neurone, and in the macroscopic network of the brain.

 

Pathology

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