Thursday, February 13, 2014
The Chemical in Marijuna
Thursday, February 6, 2014
How Important Are Our Neurons?
How important are neurons and the myelin sheaths that cover
parts of the neurons axon? (Neurons and nervous cells) are responsive cells in
the nervous system that process and transmit information by electrochemical
signaling. They are the core components of the brain, the vertebrate spinal
cord, the invertebrate ventral nerve cord, and the peripheral nerves. A number
of different types of neurons exist: sensory neurons respond to touch, sound,
light and numerous other stimuli affecting cells of the sensory organs that
then send signals to the spinal cord and brain. Motor neurons receive signals
from the brain and spinal cord and cause muscle contractions and affect glands.
Inter-neurons connect neurons to other neurons within the brain and spinal cord.
Neurons respond to stimulation, and communicate the presence of stimulation to
the central nervous system, which then processes that information and sends
responses to other parts of the body for action. Myelin sheaths are wrapped
around the axon of the neuron and are important for transmitting information to
the brain faster if these are destroyed by Demyelinating diseases of the
nervous system it can lead to other diseases such as (metachromatic
leukodystrophy, Krabbe's disease). This can be fatal since it can cause muscle
weakness, feeding difficulties, episodes of fever without any sign of
infection, stiff posture, and slowed mental and physical development. As the
disease progresses, muscles continue to weaken, affecting the infant's ability
to move, chew, swallow, and breathe. Affected infants also experience vision
loss and seizures. So we need neurons to transmit signals to out muscles in
order for us to eat on our own and breathe involuntary while we sleep. Neurons are
greatly important but so are the Schwann cells and the myelin’s sheaths that
cover parts of the neurons axon. Even though the pulse that is passing through
the neurons is still transmitted to the brain without the myelin sheath it
slows down everything in our response timing which is crucial to our survival. It is sad to say that there is no cure for this disease yet, but relating back to my last blog about animal research. there could be a possibility that we can one day find a cure for this and help those who cannot help themselves.
Friday, January 31, 2014
Animal research? Good or Bad?
I found multiple things interesting about animal
research. The one that stick out the most is how abolitionist and their tactics
to scare researchers from continuing research, by doing things such as
vandalizing their homes and cars. Researchers are not killing these animals out
of hate, they are simply doing these researches and tests to benefit the human
race from diseases also to understand the relationship between brain activity
and behavior. If results are found this can prevent future violence
between humans possibly creating a more peaceful world. Even though there is a
huge debate between using and not using animals for these kinds of research, it
is meaningful for not only humans but animals as well. Some animals carry the
disease called AIDS, if researchers can find a cure for this disease then they
can not only save humans but other animals as well and prevent extinction. Finding
cures can help give more time with loved ones who are sick especially children
that are born with diseases. These innocent kids deserve a chance to live
life not fight for it. I do see the side of where these abolitionist are
coming from but someone has to pay the price, just like our troops who go and
fight for our freedom. Without or armed forces, none of us would have the
freedom that we have today and these me and women pay the price. Nothing comes
free whether we would like to believe that it does it doesn't. These animals
are not dying for nothing, they are dying for a good cause. Nobody can live forever but if we can help find a way to prevent the things that do kill us so
that we may spend the most amount of time with our loved ones as we can.
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