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JimmyRay
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Why are neurons shaped the way they are?
JimmyRay said:Why are neurons shaped the way they are?
They exists because they contribute to persistence of being. You know, individuals with superior neural consructs better survived and reproduced than those with meager ones: If two early hominids saw two lions entering the savanna and saw one leave, the hominid that could count would pass on his genes to the gene pool.JimmyRay said:I Why do they exist?
Axons need to be as long as it takes to reach their terminal bud. I believe the longest in man is about 3 feet (from spinal column to big toe).I mainly meant why is the axon so long?
The neural architecture (connections) gives rise to mind although some would argue other "forces" are involved, In general, the greater the complexity (extent of connections), the greater the extent of mind. A cognitive apparatus is a selective advantage to survival; one with greater complexity is more of an advantage within limits. Thus, through millions of years of evolution, the advantage of a more connected architecture drove our evolution towards greater neural complexity (more branching). The reason other life forms didn't evolve such complexity is simple: chance (we were lucky) and competition (we'd stop them).and why are dendrites branched out
JimmyRay said:Okay I understand that survival of the fittest thing (saltydog) but doesn't that hold true for all human cells? tissues? organs? not just nerve cells?
What about the main function of neurons like, they receive electrical impulses from the brain right? I am just wondering what they do basically...like.. the process of how they work in the nervous system..
JimmyRay said:What about the main function of neurons like, they receive electrical impulses from the brain right?
Im just wondering what they do basically...like.. the process of how they work in the nervous system..
The unique shape of neurons is characterized by long, branching projections called dendrites and a single, elongated axon. These structures allow neurons to send and receive electrical signals throughout the body.
The shape of neurons is determined by their genetic makeup and influenced by their environment. During development, neurons go through a process called neuritogenesis, where they form their dendrites and axon. The shape of neurons is also constantly changing throughout their lifespan as they form new connections and adapt to their surroundings.
The unique shape of neurons allows them to efficiently communicate with other neurons and cells in the body. Dendrites receive signals from other neurons and axons transmit signals to other cells. The branching structure of neurons also allows for a large surface area, increasing the number of connections and information processing capabilities.
Yes, the shape of neurons can change through a process called neuroplasticity. This is the ability of neurons to change their structure and connections in response to new experiences and learning. Neuroplasticity is essential for brain development and allows for adaptation to different environments.
No, there are many different types of neurons with varying shapes and functions. For example, motor neurons have long axons that extend from the spinal cord to muscles, while interneurons have a more compact shape and are involved in communication between neurons. The unique shape of neurons is tailored to their specific function in the body.