The Power Of The Human Brain Essays

The Power of the Human Brain Essays
Introduction
Humans have been considered the highest form of living things on earth . This is not attributed to the fact that the human body is strong or agile ,
because there are multiple animals that possess strength and agility far beyond the imagination of humans . The main characteristic that distinguishes
humans from all other organisms is the brain . The brain is the powerhouse of the body . However this is also the site of the mind . The mind has
been said to give humans superior status over other creatures . With this one significant characteristic, humans have the ability to reason , feel and
adapt . Man has crossed many miles stones beyond the capabilities of any other living thing ad there are many more feats to be reached...show more
content...
The Cerebellum is located at the back of the brain , under the occipital and temporal lobes of the cereral cortex . and contains about 50% of the neurons
in the brain and has been nicknamed the motor structure of the brain, due to the fact that a damaged cerebellum affects motor control and posture .The
cerebellum performs the following functions
Maintains Balance and Posture
Coordination of voluntary movement
Motor Learning
Cognitive functions
The Cerebellum is built from four different types of neurons which include granule cells, Purkinje cells and two types of inhibitory interneurons (Golgi
cells and basket cells)
The Brain Stem is on the bottom of the brain and is between the deeply rooted structures of the cerebral hemisphere and the cervical spinal cord. It is
split into three sections or departments , midbrain(mesencephalon), pons(metencephalon and medulla oblongata 9myelencephalon). The brainstem
which is storage for many control houses of the body that include functions like swallowing, breathing and vasomotor control. Cranial nerve nuclei is
located in the brainstem with the exception of the ones associated with the olfaction and vision, these provide motor and sensory functions to the
different structures in the cranium, e.g. facial muscles, tongue ,larynx and pharynx , it also serves the purpose of supplying the senses of taste,
equilibrium and hearing . Complete loss of brainstem has been regarded by
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Essay about Drugs Affect on Brain
Abstract Drugs some use them to escape pain, others use them for pleasure, and some use them to just fit in. Either way drugs are a harmful
substance that may seriously affect the body. Drugs mess with the brain in ways that we couldn't even imagine. From destroying brain cells that
help with critical thinking to destroying cells that give us the ability to feel pleasure. Drugs take the place of our natural body functions of the body.
They fool receptors of the body and make it to where our bodies produce less of what we need. Over a period of time this may produce very severe
consequences on the body. With all the risks involved with drugs it's a wonder why some people use them.
Introduction The human brain is the...show more content...
In addition, the limbic system is responsible for our perception of other emotions, both positive and negative, which explains the mood altering
properties of many drugs. The cerebral cortex is divided into areas that control specific functions. Different areas process information from our senses,
enabling us to see, feel, hear, and taste. The front part of the cortex, the frontal cortex or forebrain, is the thinking center of the brain, it powers our
ability to think, plan, solve problems, and make decisions.
How drugs work in the brain Drugs are chemicals they work in the brain by tapping into the brain's communication system and interfering with the way
nerve cells normally send, receive, and process information. Some drugs, such as marijuana and heroin, can activate neurons because their chemical
structure mimics that of a natural neurotransmitter. This fools receptors and allows the drugs to lock onto and activate the nerve cells. Although these
drugs mimic brain chemicals, they don't activate nerve cells in the same way as a natural neurotransmitter, and they lead to abnormal messages being
transmitted through the network.
Other drugs, such as amphetamine or cocaine, can cause the nerve cells to release abnormally large amounts of natural neurotransmitters or prevent the
normal recycling of these brain chemicals. This disruption produces

The Brain And Its Anatomy
Our brains have the enough power to make all of the many different parts of our body function the way it should. It can make our body do involuntary
actions that constantly keep us alive and healthy, and we don't even realize all of the things that it is capable of. As Nicolaus Steno once said, "Thebrain
, the masterpiece of creation, is almost unknown to us" (web.stanford.edu, 2014). The brain and its anatomy were first studied by the Egyptians in 1700
B.C., and ever since then, its immeasurable power has been continuously astonishing us with new and amazing discoveries of previously unknown
capabilities (faculty.washington.edu, 2014). The first person to dissect the brain to study relationships between the brain and optic nerves was...show
more content...
And, since this experiment is about how hand eye dominance affects the hand eye coordination used when shooting a basketball, the occipital lobe is
one of the most important parts of the brain in regards to this experiment.
Everyone knows that the typical human being has a dominant hand.The only case in which a person does not have a dominant hand is if that person
can use their right and left hand equally well. In this case this person is ambidextrous. But, the typical human also has a dominant foot, ear, side of the
brain, and eye. (web.stanford.edu, 2014) Eye dominance, or eyedness, is the tendency to prefer visual input from one eye to the other. This is similar
to left or right handedness. For people who have anisometropic myopia, a different amount of nearsightedness in each eye, the eye with more myopia
or nearsightedness is the dominant eye (web.stanford.edu, 2014). The easiest way to test your eyedness is to create a small triangle with your hands,
with your thumbs as the base of the triangle and your left hand's fingers overlapping your right hand's fingers , and center it around an object, such as a
doorknob, about 5–10 feet away with both eyes open. Then, close your left eye. If you can still see the object with your right eye opened, then your
right eye is your dominant eye. If the object moves out of your view, then close your right eye. You will most likely see the object with your left eye,
in which case your dominant eye is your left eye

How Does the Brain Work? Essay
How do we learn? What makes us smart and how do we remember what we have learned, what can I do to motivate myself and others, what makes
us do the things we do? These are all questions that a student teacher needs to have answered in order to be able to teach effectively. Following are
some explanations that have guided my understanding of how I have learned and how I can become more effective in my teaching practice. The
brain is a good place to start when we talk about learning. "It is sometimes referred to as a muscle of thinking." (Biology about.com)There are lots of
different parts to the brain, but the forebrain, midbrain and hindbrain are the biggest parts of the brain. There are billions of nerve cells...show more
content...
The area that controls language (forebrain) shows most development in infancy and early childhood, when children are starting to gain more and
more language (Krause,2010).In my years of working as a child care worker I have observed that, some children of the same age seemed to arrive
at different developmental stages at different times. For example one child aged twelve months , could walk and move around obstacles with
ease, her language was average for a child of her age ,yet another child of the same age was only able to sit on her bottom, did not attempt to walk
or even crawl, but her language was outstanding. The brain is such a complex organ, I have learned the basic structure of the brain, and am able to
better understand why some children in childcare were able to do things, others could not. It seems childhood is a crucial time for children and brain
development, even though genetics play a great part in the way our brain is structured, a healthy diet, plenty of sleep and a good variety of
experiences all play a part in the way our brain develops from early childhood (Krauss, 2010). There are two main Psychological theories of learning I
would like to discuss, the first being Vygotsky's (social constructivism), the second Piaget's (personal constructivism) theories .Constructivists learning
theories basically centre on the believe that the student is an active learner and has to build on his/her own learning.

The Importance Of Forebrain
Forebrain: the largest section of the brain. It is responsible for a wide array of a person, such as speech, emotional and intellectual capabilities,
memory, motion, and even feeling.
Midbrain: it is responsible for sending messages between the brain and spinal cord.
Hindbrain: it is primarily responsible for motion – it determines how well a person's coordination and balance are. Additionally, it is responsible for a
large amount of the automatic motions of the body, such as breathing and blinking.
The CNS is protected by three layers which cover the brain and spinal cord, called meninges. These layers are called dura mater, arachnoid mater, and
pia mater. There is also a fluid called cerebrospinal fluid, which minimizes shock in the CNS.

The Human Brain Essay
The human brain is a big, intricate–yet delicate, structure in the human body. It is the key structure in cognitive function. Any damage to the brain
does not only "erase" memories but also may "deceive" the brain to erroneously remember a new object as being familiar (2010). The innovative
researchers at Cambridge University investigated this phenomenon in their research on The Paradoxial False Memory for Objects after Brain Damage.
The publication began by stating the widely acceptable premise that medial temporal lobe damage results in the inability to remember new experiences
soon after they are learned. They indicated that the general belief is that this occurs because the ability to remember such information becomes
compromised...show more content...
This is followed by a testing phase in which the object is presented simultaneously with a new distinctive object. In this experiment the participant is
then required to distinguish between the repeated object and the new object. The finding was that participants with temporal lobe damage have
impairment in making the distinction between the repeated experience and the novel experience when both are presented side by side especially after
a long delay between study and test. The indication was that the delay presents interferences which affect the perception of the experiences. It was
concluded therefore that the inability to distinguish the repeated object and novel object is a factor of how one object affects the other and how it is
perceived.
The researchers went further to test this hypothesis by using a method of assessing object recognition by "decoupling" the objects of exploration. The
finding was that participants with intact brain explored the novel object more than the repeated object and those with temporal lobe injury explored
both equally. Furthermore they introduced another factor by placing the participants in a holding area or visually restricted environment. The study
showed that the longer the delay, the more intense the impairment. The researchers concluded that object recognition is not only a function of the delay
but a function of the complexity of the task or performance.
Researchers suggest that the anatomy and the patho–physiology of

How The Brain Works Essay
Current research shows that mental events cause physical events, and scientists believe examining single nerves is the key to understanding how the
brain works as a complete unit. Understanding the brain at the nerve cell level will allow scientists to understand how human consciousness works
(Blakeslee, 1992). Furthermore, the brain's thalamus is identified as the possible sensory connector because it fires 40 impulses per second that sweep
through the entire brain (Blakeslee, 1995a). These findings are a serious implication to Dualism because it states the mind is not physical. If the mind is
not physical, it cannot affect the physical body, so the Dualist theory of two–sided interactions between the body and mind are false. The...show more
content...
Linking the mind to the brain would invalidate Searle's (1980) explanation that artificial intelligence is impossible because the brain is irrelevant when
the mind is concerned. In other words, programs require machines to run, but the mind is independent of the brain. Recent findings suggest that the
brain is directly linked to the mind, so even creating AI machines will be possible in the future because the mind is obviously linked to the body
through the brain and the nervous system. Although new theories on human consciousness will obviously assist AI engineers, those theories will
question the reliability of Dualism because they suggest that mind is a material substance that takes a certain space and creates certain manifestations
in the body. In reality, it is possible that the mind is a material substance. For example, the human eye cannot observe atoms, but they are physical
substances, so there is no reason to define mind as an immaterial substance based on the fact that it cannot be perceived. Even though the mind is
invisible to the human senses, it is possible to observe the mind. Armstrong's (1980) proposal is that the consciousness is the observer of the current
state of mind. While the human mind is automatically aware of its perceptions in the brain, a person's consciousness is aware of the mind's awareness
of those perceptions (Armstrong, 1980). However, Armstrong's theory has two implications for Dualism. While Dualism defines mind as a

The Structure Of The Brain Essay
Structure of the brain
The brain is made up of 4 main parts and they are:
в—Џthe cerebral cortex,
в—Џlimbic system,
в—Џthe cerebellum
в—Џand the brain stem
The cerebral cortex
The cerebral cortex is split into two cerebral hemispheres (the left and right hemispheres). Sometimes the right hemisphere is related to creativity and
the left hemisphere is related to logic abilities. It is divided into four sections called lobes, the frontal lobe, parietal lobe, occipital lobe, and temporal
lobe. This is the largest part of the brain. The cerebral cortex is associated with determining intelligence, influencing your personality, motor function,
planning and organization, processing sensory information and language processing. The cerebral cortex has sensory as well as motor areas therefore it
is responsible for processing sensory information and motor functionality responses.
The frontal Lobe
The frontal lobe is the biggest lobe. It is involved in motor functions. The frontal lobe helps us to make decisions as well as assisting to solve
problems. It is also connected language and speech functions. The frontal lobe is located at the front of that brain. It is also the biggest lobe in the
brain. The frontal lobe is the part of the brain that controls important intellectual skills, such as emotional expression, memory and judgment.
Parietal Lobe
The parietal lobe is behind the frontal lobe and above the temporal lobe. It is responsible for receiving and processing sensory information and

The Human Brain Essay
The Human Brain
The human being is considered to be the ultimate form of life on the earth. This is not because the human body is strong and agile. Many other animals
posses skills much superior to humans and are able to perform feats humans can only dream of. The one thing that distinguishes humans from all of the
other organisms on this planet is the brain. The brain is the site that controls the human body. However, unlike in animals, in man, the brain is also the
site of the mind. The mind gives humans superiority over other creatures. It provides humans with the ability to reason, to feel and to adapt. Because of
this, man has achieved so much, and has also realized that much more is still ahead.
During...show more content...
This increase in knowledge is partly due to the recent advances in nuclear medicine. Although X–ray machines have been the chief mechanical tools for
internal observations of the human body since Wilhelm
Roentgen discovered X–rays in 1901, the development of computers made it possible for better and more accurate techniques to be applied to scan the
human body. These methods employ various scanners like the CAT, PET, MRI and SPECT.
The CAT is an acronym for Computerized Axial Tomography. This method of scanning generally involves X
–rays and enables scientists to view the
inside of the head in a three dimensional format on a computer screen. PET stands for Positron Emission Tomography and it is much more complicated
than the CAT scan. PET machines bombard the subject with doses of positrons–– the anti–matter equivalents of the electrons. As the positrons enter
the body, they encounter electrons which are escaping from radioactive elements which have been injected into the bloodstream. When the positrons
and the electrons collide, they give off energy which is recorded by a computer. The result is a far more detailed 3–D picture of the brain than the one
obtained from the CAT machine. To obtain an even better image, physicians use the MRI, which stands for Magnetic Resonance
Spectroscopy. With these three

The Brain and Cranial Nerves Essay examples
The Brain and Cranial Nerves
One of the most complex and fascinating things in the human body is the brain. The body is "capable of almost everything, but it would not be
possible, without the brain receiving information, and analyzing the information."
The brain is aware of its surroundings, via input from the spinal cord and cranial nerves. Cranial nerves with sensory functions allow us to smell and
see. Nerves with both motor and sensory functions are responsible for everything from tasting and chewing, to breathing and the heating of your heart.
Many of the little things we take for granted are also made possible by cranial nerves.
Solving...show more content...
Because virtually no glucose is stored in the brain, the supply of glucose also must be continuous. If the blood entering the brain has a low level of
glucose, mental confusion, dizziness, convulsions, and loss of consciousness may occur.
The blood brain barrier protects brain cells from harmful substances, as well as, pathogens, by preventing passage of many substances from blood into
brain tissue.
Tight junctions seal together the enclothelial cells of brain capillaries, which also are surrounded by a thick basement membrain. The process of many
astrocyties pressing up against the capillaries is known as the Astrocyties Process. This process selectively passes some substances from the blood to
the neurons, at the same time, inhibiting the passage of others.
A few water soluble substances, like glucose, cross the brain blood barrier by active transport. Other substances like creatinine, vrea, and most ions,
cross very slowly. Other substances and protions, including most antibiotic drugs, do not pass at all from the blood into brain tissue. Trauma, certain
toxins, and inflammation, can all cause a breakdown of the Brain blood barrier.
The cranium and the Cranial Meniges surround and protect the brain. The Cranial meninges are continuous with the Spical meninges. Both have the
same basic

Essay about the human brain
In this paper one will learn the different parts of the brain and their functions. Although the brain isn't the largest organ of the human body it is the most
complex and controlling organ. It is amazing how complicated the brain is. The brain controls every action within and out of your body. The brain has
main areas that contain different areas that have specific functions. For instance the basal ganglia holds the lentiform and the caudate.
The brain isn't just "THE BRAIN" it is actually a group of many parts. They help to inform the brain on the things going on with the human body. The
brain is split in to two main parts, the left and the right hemisphere. The left hemisphere has about the same areas as the right hemisphere. The only
...show more content...
The corpus callosum is a bundle of nerves that connects the two hemispheres. The area that passes and processes information concerning touch, pain,
temperature, and pressure on skin is the thalamus. The limbic system controls your behavior and emotions. It is involved in emotions such as fear,
rage, pleasure, and sorrow. In the prefrontal area of the frontal lobe emotional traits are controlled. In the temporal lobe expressed behavior is
controlled. The parietal lobe discriminates sensory. The occipital lobe is where visual interpretation takes place. Pons is a crossroad for nerves going
up to the cortex, to the cerebellum and then down the spinal cord. The cortex is the outer gray area where thinking takes place. The olfactory cortex
receives senses from the nose that it then sorts out. The area that identifies what we see by working out movements, colors, and shapes is the visual
cortex. The area that receives taste senses is called gustatory cortex. The area responsible for analyzing data, performing memory functions, learning
new information, forming thoughts, and making decisions is the cerebral cortex. The motor cortex is involved in muscle movement. The cerebellum is
vital when carrying out complicated, skilled movements. It is much like a mini brain.
If before you read this paper you thought the brain was a "one man machine" I'm sure your opinion has changed after reading his paper. It is amazing
how god has created the brain to have so many areas

Essay The Aging Brain
The Aging Brain Why does the human brain age? Brain aging is a part of human life and a big part of society as the awareness for brain aging
increases. Over time memory tends to become less efficient as we age and the neurons in the brain decreases (Bendheim, P.E. (2009). By 2050 in the
US, 20 percent of the population will be 65 years or older. And as the elderly population increases, so will the incidence of age–related neurological
disorders (Perlmutter, David. (2004). Therefor it is important to understand the aging brain, and how to keep the brain functioning as one ages. As age
increases, we can expect some loss of heart, lung, joint, and sexual functioning. Some loss of brain cells and mental efficiency is a normal part of...show
more content...
In many cases mild age–related memory loss is considered normal, but more severe memory impairments are not. What is a stroke and how is it
related to the aging brain? A stroke happens when the blood supply to your brain is interrupted or it is reduced, depriving the brain tissues of
oxygen and food (Bendheim, P.E. (2009). Within minutes of a stroke brain cells begin to die. Early action can minimize brain damage and
potential complications. A stroke can cause temporary or permanent disabilities, depending on how long the brain suffers the lack of blood flow
(Perlmutter, David. (2004). Some complications after a stroke are; paralyzation (loss of muscle movement), memory loss, and trouble talking.
Paralyzation is due to the lack of blood flow to the brain, a patient can lose movement in one side of the body. Stroke can damage too many parts of
the brain, and it can start an early brain aging. A stroke can cause a patient to loss control over the way muscles in the mouth move, have difficult
talking and eating (Bendheim, P.E. (2009). But one can try to prevent a stroke by taking care of their high blood pressure, high cholesterol, and
smoking. Dementia is also part of the aging brain. One in seven people ages 71 and older has dementia, but that figure rises to

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The Power Of The Human Brain Essays