K4D806B Explain Early Brain Development

D806d - Explain Physiology of early brain development – from conception to early life.
- How it forms and what stimulates connections

Connections or synapses between the cells form as the baby experiences their surroundings. This network of neurons and synapses controls various functions, such as seeing, hearing, and moving. By the age of three, a child’s brain has twice as many synapses as an adult brain. If a child’s brain is not stimulated from birth, these synapses don’t develop, impairing the child’s ability to learn and grow. Brains cells are perfectly designed for making connections. Each cell sends signals to other brains cells and receives input from other cells. The signals, in the form of electrical impulses, travel down the length of the nerve cell and with the help of special chemicals they travel from cell to cell, creating connections. Repeated activation of neuron networks strengthens the connections and a single cell can connect with as many as 15,000 other cells and experience shapes the way circuits are made in the brain.

The first stage of brain development is called prenatal stage.

This stage begins when a baby is inside the womb as a foetus as the brain begins to work before a baby is born. By three weeks of conceiving, the brain cells begin to form at the tip of the embryo, this tube expands and it matures to form the spinal cord, after that the tube forms the brain. The brain cells or the neurones get developed in a slow process and the neurones begin to make contacts with each other. At this stage, the brain cells mature very quickly and nearly 250,000 cells grow in a child's brain every minute. The growing rate usually slows down after around the 20th week and the brain development of the foetus is almost complete when your baby reaches the age of 6 months in the womb, mostly all the neurones that are needed for a human life are now present in the brain. During the last three months of a pregnancy the neurons become more...