Discussion by: Nour, Noah, Sophia (leader), Zinna, Savannah
Neuron’s communicate through a series of steps which I will guide you through in this blog post!
The process of communication begins with an action potential. The action potential is an electromechanical signal or charge which travels down the axon. This charge is caused by the movements of positive and negative ions. The neuron starts with a resting potential of -70mV. Soon, depolarization occurs and changes the charge to +30mV. Depolarization occurs when a message is sent and stimulates a part of the axon. This causes gateways to open for the positive Na (sodium) ions to enter the axon. Once the sodium enters the axon, the gates close and new doors are opened for the positive K (potassium) ions to exit the axon. This is called repolarization. This causes the charge to return to the regular -70mV charge. However a chain reaction is started and the next segment of the axon starts to depolarize. The action potential then continues to move down the axon.
Now, what happens once the action potential reaches the end of the axon? This is where synapse comes in.
Once the action potential gets to the end of the neuron, a chemical signal is sent to the next neuron. The signal from the sending neuron’s axon goes to the receiving neuron’s dendrite. The action potential causes the synaptic vesicles to release neurotransmitters into the synaptic gap. The neurotransmitters get through the synaptic gap and then attach to the receptors of the receiving neuron. The neurotransmitters then either, keep the reaction going by stimulating (excitatory) or the stop the reaction by repressing the action potential (inhibitory). This depends on the action of the receptor. Glutamate would cause an excitatory reaction and GABA would cause an inhibitory reaction.
Discussion by: Nour, Noah, Zinna, Sophia and Savannah
Some people may argue that technology is detrimental to mankind, but is that really true? Sure it can be a major distraction and influence young minds negatively; however, it has also had an undeniably great impact on humanity. Not only do we use it as a tool in our daily lives, but it helps keep us together and allows us to save more time in our lives. According to statistics from 2018, almost half the people in the world’s population uses at least 1 social network. This is just one example of how many of us use technology in our daily lives. Many of us also make use of the tools and advantages that come with our devices. It is now possible to find the answer to any question just by entering it in google. In addition, people from complete opposite sides of the globe can communicate with as little as a good wifi connection. According to an article by New York Times Upfront, “music, sports, and culture spread easily across the globe, providing powerful links across international borders” (Csorba). It also saves so much time that can be spent with loved ones instead of taking so long trying to get a simple task done. For example, instead of writing out a paragraph or essay by hand, it’s faster to type it out on a computer, plus get the word count, have autocorrect, and review and edit at any time. In conclusion, technology is a very helpful tool and provides us many ways of communicating with each other. We can see now, more than ever, especially with social media, the way our technology effects us. Technology is evolving very quickly and changing our world. We must be aware of this; however, as long as we choose to use our technology in a way that helps us, it will lead us towards a bright future.
Csorba, Emerson, and Noa Gafni Slaney. “Are we too wired?” New York Times Upfront, 24 Apr. 2017, p. 22+. Canada In Context, http://link.galegroup.com/apps/doc/A492535637/CIC?u=43riss&sid=CIC&xid=0a3d61d6 .Accessed 26 Sept. 2018.
“Be in the Know: 2018 Social Media Statistics You Should Know.” Disruptive Advertising, 13 Mar. 2018, www.disruptiveadvertising.com/social-media/be-in-the-know-2018-social-media-statistics-you-should-know/.