A neuron is the basic block of the nervous system. Neuron is similar to other cells in the human body but the major difference is that neuron is specialized to transmit information throughout the body. Neuron cells are responsible for communicating the information in chemical and electrical forms. The dendrites, the cell body and the axon is the three basic parts of a neuron. Therefore, the role of neuron in body varies depending on the shape, size and characteristics. Motor neurons are responsible for transmitting the information to the brain to the muscles of the body (Thomas, 2000).
Question 2
Our everyday functioning requires the neurotransmitters. It is the messenger the carries, boosts and modulates signals between the neurons and other cells of the body.
The common forms of Neurotransmitters are Acetylcholine, Endorphins, Dopamine, Serotonin, Adrenaline, Noradrenalin and G.A.B.A.
The Acetylcholine is associated with the memory, muscle contractions and learning. Alzheimer disease often occurs due to lack of Acetylcholine. Emotions and perceptions are linked with the Endorphins. The fear and trauma is released in form of Endorphins.
Pleasurable feelings and thoughts are associated with the Dopamine. Lack of dopamine in body often results in Parkinson's diseases.
Serotonin is the transmitter which helps the body in sleeping, dreaming, hunger and arousal. They excessively prevail in the brain. Therefore, the reduction of serotonin results in depression and anxiety.
Similarly, the GABA is involved in regulating the anxiety and is more related with the eating and sleeping disorders (Jung, 1989).
Question 3
The Central Nervous System acts as a hub to integrate the information the body receives
This system is protected through the bone of spine and skull. It contains the million of nerve cells. Therefore, these million cells allow the several part of our body to communicate each through the brain ...