| Anatomy of NeuronDendrites: Antennas that receive information from opposing neurons, and transmit that information to the soma. Cell Body: Also known as the soma, accommodates the nucleus. The cell body is responsible for a large amount of the protein and energy production.Axon: The final stop where the information by the dendrites is produced. Axons are covered with the myelin, which increases the speed and the information.Nodes of Ranvier: Gaps between the myelin.Axon Terminal: The axon ends with the axon terminal.Neurons can communicate with one another, and have effects on basic functions of the development of cognition (Smith, 2010).
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Neural Impulse& ConductionsNeural Impulse: An electrical signal that travels along an axon. Steps of Neural ConductionStep 1: Nerve cells at resting potential. Sodium and Potassium diffuse with the concentration gradient. Step 2: Neurons get stimulation, which causes local potentials to lead to the threshold. Step 3: Sodium channels within the trigger zone of the axon open.Step 4: Sodium ions diffuse towards the inside, which depolarizes the membrane.Step 5: Potassium channels within the membrane begin to open.Step 6: Potassium ions diffuse towards the outside, this repolarizes the membrane. Step 7: Action potential causes an electrical current to stimulate the other side of the portions of the membrane.Step 8: Action potentials occur in specific sequences, along the axon as a nerve impulse. |
