Neurogenesis is the process in which new neural stem cells are created. In the past, it was thought that this process ends in childhood. New studies have proven this wrong, and in fact neurogenesis continues to occur throughout adulthood. It is now hypothesized to play to be the main component in neural plasticity, our ability to learn, and memorize. There are many factors that can affect neurogenesis, both genetic and environmental. Cruz and Nixon (2003) sought to see what effects, if any, that…
Vocal and singing breathing exercises hold the key to effective sound quality and proper pitching, along with developing the correct singing posture. When we breathe, we tend to take in air and release it in a burst, as quickly as possible. This holds true for 99% people but singing requires you to breathe in a different manner. As you move up the learning curve, you will also begin understanding how important it is to control your breath especially while singing soprano or tenor. Proper…
Our sensorimotor has many parts to function and manipulate what we want our body part to do. We simply must think and react to what are next move and in rapid millisecond either our hand or leg moves. As this occurs, our primary somatosensory cortex that’s located in our central sulcus has a full chart of information lined up for our function to travel all the way to our spinal cord and make a movement. As Agnosia damages the path of any function of either of the temporal lobe or cerebellum, it…
Cerebral palsy is a group of permanent movement disorders that tend to develop in early childhood. The disorder originates in the cerebellum, which is located dorsally to the superior part of the brain and is composed of two hemispheres. In a healthy body, the cerebellum receives information from the spinal cord and then regulates motor movements. The cerebellum is composed of about half of the brain’s neurons. This does not mean that the disorder cannot develop in adulthood, however cases such…
6) The monoamine theory of depression foresees the underlying pathophysiologic source for depression is the diminution of levels of norepinephrine, serotonin, and dopamine within the central nervous system (National Center for Biotechnology Information). Indication for this hypothesis is sustained with clinical trials and animal testing. Barchas, J., and Altemus, M. (1999) Monoamine Hypotheses of Mood Disorders Retrieved from http://www.ncbi.nlm.nih.gov/books/NBK28257/ 7) NOT DONE 8) The…
Have you ever wondered how the brain works or how it is connected? Outside the brain there appears to be a handful of pink and gray muscles. However, as you enter the human brain, it reveals an extremely complex circuit, connecting you with the rest of your body. The brain contains almost 100,000 miles of blood vessels and billions of cells. It is the consummate library of information, remembering data and processing it as quickly as 11 million bits per second (The Human Brain). The brain is a…
Rectal prolapse is protuberance of rectal tissue via the anus to the exterior of the body. The rectum is the final segment of the large intestine. Description Rectal prolapse can be partial or complete. In partial prolapse, only the mucosa layer (mucous membrane) of the rectum spreads outside the body. The projection is usually 0.75-1.5 in (2-4 cm) long. In complete prolapse, named procidentia, the full thickness of the rectum obtrudes for up to 4.5 in (12 cm). Rectal prolapse is most common in…
attitudes about people with disabilities. In this paper I am going to talk about the character, Christy Brown, from the film My Left Foot. The film My Left Foot is based on an autobiography by Christy Brown who was an Irish painter and writer born with cerebral palsy. I chose to write about Christy Brown because his life shows well what it is like to grow up as a person with a disability in society. Also, one of the main reasons why I have decided to write about him is because his life shows…
Cerebral Palsy: The Never Ending Journey Every day many children, teens and adults struggle and fight to make the best of living with cerebral palsy, most of them never quitting and never losing hope. There are probably many inspirational stories I could tell, but one from my personal experience I knew him growing up, and he was born with cerebral palsy from birth, his being not so severe that he is able to walk on his own. However, he has had a rough time learning to slow down when walking so…
Electrical and chemical synapses serve different functions in the nervous system, and the use of each type of synapse has advantages and disadvantages for situations requiring signal transmission. One of the advantages of the use of an electrical synapse is speed, as electrical synapses allow action potentials to pass directly from neuron to neuron through the use of gap junctions. This direct passage and resulting speed of transmission isn’t present in chemical synapses. Chemical synapses rely…