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What Happened to Chris: An Analysis of the Nervous System

Brandon Lew, Samantha DeDios, Carlos Garcia, and Michael Rapacon

Brandon Lew

on 17 November 2013

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Transcript of What Happened to Chris: An Analysis of the Nervous System

What Happened To Chris?
Brandon Lew
Samantha DeDios
Carlos Garcia
Michael Rapacon

Works Cited

Gao, Amy. "The Effects of Methamphetamine on the Brain." N.p., 14 Apr. 2004. Web. 26 Sept. 2012. <http://serendip.brynmawr.edu/bb/neuro/neuro04/web2/agao.html>.

"Mouse Party." Mouse Party. The University of Utah, 2012. Web. 26 Sept. 2012. <http://learn.genetics.utah.edu/content/addiction/drugs/mouse.html>.

"NERVOUS SYSTEM." NERVOUS SYSTEM. In Depth Program, n.d. Web. 26 Sept. 2012. <http://www.indepthprogram.com/nervous.html>.

"Neuroscience For Kids." Neuroscience for Kids- Alcohol and the Brain. Eric H. Chudler, 2011. Web. 23 Sept. 2012. <http://faculty.washington.edu/chudler/alco.html>.

Spanagel, Rainer. "Alcoholism: A Systems Approach From Molecular Physiology to Addictive Behavior." Alcoholism: A Systems Approach From Molecular Physiology to Addictive Behavior. American Physiological Society, 2012. Web. 25 Sept. 2012. <http://physrev.physiology.org/content/89/2/649.full>.

Methamphetamine enters the axons and is trapped in the synaptic cleft. It then switches with the neurotransmitter and spits back out into the synapse.
Long term use of methamphetamine can cause the brain to have a small amount of neurotransmitters and a decrease of motor skills.

While using methamphetamine, memories do not come back, therefore causing permanent brain damage.
Major Organs in the Nervous System
Spinal Cord
The most basic part of the function of the nervous system is the neuron.
a specialized cell that conducts nerve impulses: consists of a cell body, axon, and dendrites
The nervous system is divided into parts.
Central Nervous System
Peripheral Nervous System
The Central Nervous System
The control center of the body
composed of the brain and the spinal cord
The Peripheral Nervous System
Connects the Central Nervous System to the limbs of the body
Peripheral Nervous System
The Peripheral Nervous System
Autonomic System
Somatic System
Autonomic Nervous System
controls the actions in our body that are beyond consciousness
Ex: heart rate, digestion, salivation, perspiration, and urination
Somatic Nervous System
associated with the control of body movements
Sympathetic Nervous System
regulates homeostasis in the body
mobilizes the "fight-or-flight" response
Parasympathetic Nervous System
responsible for the stimulation of activities that occur when the body is at rest
This system is complementary to the Sympathetic Nervous System
Functions of the Nervous System
Sensory Input
Motor Input
Sensory Input
stimuli that the nervous system receives from the environment
It detects change in pressure, taste, sound, light, and blood pH
interpretation of things you feel, taste, see, and touch with your sensory cells
Ex: When you step on a nail and your body sends stimuli and causes a chain of chemical reactions that you perceive as pain to let you know that there is something wrong.
Motor Output
what your brain has learned from either touching, smelling, hearing, or any other sense
All of these have one common goal: to regulate an organism’s perception of the world and what is going on in the body.
The nervous system usually functions with neurotransmitters which send the message to other cells.
The disruption of normal function can happen with the addition of drugs such as alcohol and methamphetamine.
Alcohol acts upon the nervous system at numerous sites which include: the reticular formation, spinal cord, cerebellum and cerebral cortex, and in many neurotransmitter systems.
Alcohol is a central nervous system depressant.
Effects of Alcohol On The Brain
Damages the frontal lobes of the brain
Causes a reduction in brain size and increase in the size of the ventricles
Causes a vitamin deficiency
Normal Brain Vs. Alcohol
How Alcohol Affects the Brain
leads to dependence and addiction to alcohol and to additional neurological problems
causes tremors, sleep problems, and nausea; more severe symptoms include hallucinations and seizures.
impairs concentration and reaction time, causes slow reflexes, coordination, and comas
Impact of Methamphetamine
How Methamphetamine Affects the Brain
We conclude that drugs are very harmful to the brain and the human body.
Drugs can create many side effects that can affect brain performance and even death.
It was very unfortunate that Chris suffered the consequences of excessive drinking.
Perhaps if he made a better decision, he could be living a normal life today.
Fun Facts About the Nervous System
There are more nerve cells in the brain than there are stars in the Milky Way Galaxy.
The neurons in the human body would be 600 miles long.
Neurons are the largest cells in the human body.
Newborn babies lose about half of their neurons before birth.
The nervous system can transmit impulses as fast as 100 meters per second.
An Analysis of the Nervous System
Cell Body
Full transcript