How Does the Brain Develop?. Everything we do, feel and say from infancy to the end of life reflect the functioning of our brain. How is the brain organized?. The Neuron. The neuron is the basic building block of the nervous system They are often grouped in bundles called nerves.
How Does the Brain Develop?
Everything we do, feel and say from infancy to the end of life reflect the functioning of our brain
How is the brain organized?
Once the information hits the Terminal button, it is transmitted outside the cell by neurotransmitters, which reside in the axon terminal.
The information shoots from one end of the neuron to the other.
How do neurons communicate?
The Corpus Callosum connects these hemispheres and allows communication from one side of the brain to the other.
The beginning of the brain can be traced to the period of the zygote
Approximately 3 weeks after conception a groups of cells form a flat structure called the neural plate
The neural plate folds to form a tube that ultimately becomes the brain and spinal cord
3 week old zygote
-In the first 2 years the brain increases in size from 25% to 75% of its adult weight
-This process is the brain’s way of “weeding out” the unnecessary connections between neurons.
If cells are unused they atrophy and are rededicated to other senses. Underused neurons, like synapses are inactivated by pruning process
When children suffer brain damage, cognitive processes are usually impaired; these processes often improve gradually showing the brain’s plasticity
The brain’s organization is somewhat flexible and if damaged the brain can make new connections