âWe are the laggard partner in this co-evolution.â âShe said that Newry's success is not through external help but through the energy of the people that âcaptured the imagination of the whole of Ireland and even cajoled the laggard politicians.ââ
One type of neuron called the Purkinje cell, found in the cerebellum, may have as many as one hundred thousand synapses.How big is a synapse? [ii]Synapses are very small. This narrow gap of extracellular space is approximately 20-40 nanometers (nm) wide. For an idea of scale, one inch is about 25.4 million nm long. The thickness of a single sheet of paper is about 100,000 nm.[iii]How many synapses are in the human brain?[iv][v]Current studies estimate that the average adult male human brain contains approximately 86 billion neurons.
There are 10 billion neurons that are interconnected in the brain. Neurons communicate with each other by using biochemical reactions. The main goal of neuron is to bring important information about the world to the brain, or to cause a change in a target cell such as a muscle or glandular cell (Lewis, 1999).ach neuron is made up of three main components: 1. a cell body which is also called a soma. 2. a nerve fiber which is called an axon. 3. a system of branches called dendrites. The cell body contains the cell nucleus, and cytoplasm with a lot of different organelles in the cytoplasm.