Early Childhood Neuron Essay

At age two, most of the child's brain is not fully developed, it is seventy-five percent of adult weight. At age five the brain is ninety-five percent of adult weight. Based on solid scientific evidence, the brain is not a completed organ at birth. Post mortem studies reveal that myelination - one of the five basic processes that make up brain development begins in the brain stem and cerebellum before birth but is not completed in the frontal cortex of the brain until late adolescence period. Myelination process begins before birth, that is during the prenatal period - it is the first process to occur in brain development. Myelin, a fatty layer accumulates around nerve cells to allow nerve impulses to move more quickly - protecting the neuron and acting like an insulation for the human brain. The cerebral hemispheres are the first myelinated. By the second year, the cerebrum is completed. During the process of brain development, there is an increase in the axonal connection which contributes to the growth of the brain. According to neuroscientists, the brain is divided into two- the right hemisphere and the left hemisphere. The left side of the body is controlled by the right hemisphere, while the left side of the brain which is the dominant part controls the right side of the

The latest research into development and learning of babies and young children shows that early stimulation are vital to the healthy development of brain. Babies are born with 100 billion neuron cells and they need to connect together in order to function. Many of these connections are made as result of what a baby senses and experiences. Stimulation, sufficient sleep and healthy diet makes a difference in allowing connections to be made. Development of brain begins well before birth. Neurons (cells in the brain which transmit electrical impulses to other cells) are formed between the 10th and 20th week of pregnancy. These cells are critical as they will later join together to allow the brain to function properly. Electrical pulses pass between cells via dendrites and axons which causes the connection between the neuron cells. The dendrites and axons of the neurons develop and begin the process of joining up in the final two months of pregnancy. Those that have not made enough strong connections are killed off and this is one reason why some children are

Neurons, nerve cells, have three basic parts: the cell body, dendrites, and axon. Neurons transmit signals to other nerve cells and throughout the body. They are simple components in the nervous system. The cell body includes the nucleus, which is the control center of the neuron. The dendrite branches off the cell body and receives information. The axon is attached to the cell body and sends information away from the cell body to other cells. When the axon goes through myelination, the axon part of the neuron becomes covered and insulated with fat cells, myelin sheath. This increases the speed and efficiency of information processing in the nervous system. Synapse are gaps between neurons, this is where connections between the axons and dendrites.

Everything we do is a product of neural communication, whether that be reacting to senses or feeling emotions, it is all due to us having neural communication through millions of neurons passing small electrical signals throughout the body through such pathways as the central nervous system and the peripheral nervous system and passing information to and from the brain. These ‘’neurons’’ are made up of Dendrites which are connected to a cell body, or also known as the soma, these are tree-like feathery filament ‘’message receivers’’ that collect these messages from other neurons it is connected to, neurons are connected through a dendrite to axon terminal connections and pass these ‘’messages’’ through the body as action potentials.

*. By repeatedly obtaining brain scans of the same children for up to four years, researchers found that the children’s brains experience undergo dramatic anatomical change between the ages of 3 and 15.

Babies grow and change so much in the first two years of life, and many of those growth are directly related to the brain. Brain grows so rapidly than any other organ and reaches 75% by the age of 2. Communication within the central nervous system and spinal cord begins with neurons. The final part of the brain prefrontal cortex matures.

The author invites the reader on his own journey to understanding how the developing brain works. He learns that to facilitate recovery, the loss of

hormones, neurotropic factors, environmental demands) are essential for typical differentiation. Especially at this age range, strong region-specific maturational changes occur in the rolandic gray matter, which present an increased susceptibility to deviations from the normal developmental trajectory by improper signaling (Andersen, 2003; Lenroot and Giedd, 2006). Moreover, during development, preadolescent influences are incorporated into the (further) maturation of anatomy and function as they determine set points for adult function, with possibly lasting effects (Andersen, 2003). The phase of preadolescent cortical thinning is preceded by a tremendous overshoot of neurons and connections, during which the brain is established as an over-complete network (Andersen, 2003; Lenroot and Giedd, 2006). The subsequent pruning process removes redundant neurons and connections to optimize the network for environmental needs, the level of redundancy determining the degree of adaptation (Muftuler et al.,

Infant learning and brain development is fragile and contingent upon numerous intrinsic and extrinsic factors. The most critical time frame for infant brain development is from the second trimester to the first three months of life (Marshall, 2011). During this time, neural pathways are forming, areas of the brain are maturing, and brain development is rapid. From infancy until the age of 3 years, neural pathways are still being formed in response to stimulation and for this reason, it is extremely important for caregivers and parents to be aware of the many factors that can influence brain development in infants (Marshall, 2011).

Our human brains have about 100 billion neurons. These neurons react to physical and chemical changes in their surroundings. These cells specialize in sending and receiving neural messages. These neurons make connection with other neurons and send signals all over our bodies. Typically every neuron has a cell body, dendrites and an axon. Neuron’s body cell is like many other cells in body comprising of cytoplasm, nucleus, mitochondria, lysosomes, Golgi apparatus and many microtubules. These organelles enable to cell to perform its function. The axon portion of the neuron is responsible for carrying information to other neurons. The dendrite portion of the neuron is responsible for receiving the signals from the other neurons. Although neuron may have many dendrites, they typically have only one axon. All neurons are electrically excitable, maintaining voltage gradients across their membranes by means of metabolically driven ion pumps, which combine with ion channels embedded in the membrane to generate intracellular-versus-extracellular concentration differences of ions such as sodium, potassium, chloride, and calcium. Changes in the cross-membrane voltage can

Technological advances in the past decade have allowed scientists to study the brain in ways that have led to new understanding about how young children develop. There is a new understanding of both the capabilities and the vulnerabilities of infants and young children and that understanding is has influenced the work of caregivers and teachers. During pregnancy, the basic architecture of the brain is formed. Although, certain experiences do influence the developing brain during pregnancy, such as maternal health and stress, intake of drugs and/or alcohol, and quality of maternal nutrition.

Advancement made in regard to cognitive neuroscience has enabled a better understanding of the cognitive processes in infants. Studies have indicated that cognitive development in infants starts before they are born. In the eighth week of pregnancy, fetuses have the ability to hear. They become accustomed to their

Human brain consists of billions of cells interconnected together, with each performing its separate functions. It consists of two explicit categories of nerves: neurons and glia cells. Neuron is a single nerve cell in the entire nervous system; which is electrically excitable cell that carries information after being processed via chemical or electrical signals. One of its key characteristics is that it does not undergo cell division. In addition, it maintains a voltage gradient for all the neurons across its membranes. Glia cells, on the other hand, its functionality is to maintain homeostasis.

A newborns brain growth is rapid and their growth and development reflects their experiences and social relationships (Berger,2014). From two weeks after conception until two weeks after birth the brain grows more rapidly than any other organ in the body (Berger,2014). We will now examine what biologically takes place inside the brain of an infant to better try to understand why development at this stage is so crucial. A newborns brain has billions of neurons, that are located in the portion of the brain called the Cortex, and they regulate and control thought, feeling, and sensation (Berger, 2014). In addition, research has found that children younger than

In the infancy and childhood, when the brain is able to make new and useful connections for where needed, the pruning process takes place and speeds up. As a