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Although neurons are very diverse and there are exceptions to nearly every rule, it is convenient to begin with a schematic description of the structure and function of a "typical" neuron. A typical neuron is divided into three parts: the soma or cell body, dendrites, and axon. The soma is usually compact; the axon and dendrites are filaments that extrude from it. Dendrites typically branch profusely, getting thinner with each branching, and extending their farthest branches a few hundred micrometres from the soma. The axon leaves the soma at a swelling called the axon hillock, and can extend for great distances, giving rise to hundreds of branches. Unlike dendrites, an axon usually maintains the same diameter as it extends. The soma may give rise to numerous dendrites, but never to more than one axon. Synaptic signals from other neurons are received by the soma and dendrites; signals to other neurons are transmitted by the axon. A typical synapse, then, is a contact between the axon of one neuron and a dendrite or soma of another. Synaptic signals may be excitatory or inhibitory. If the net excitation received by a neuron over a short period of time is large enough, the neuron generates a brief pulse called an action potential, which originates at the soma and propagates rapidly along the axon, activating synapses onto other neurons as it goes.
source : a fragment of the whole article about neurons from Wikipedia.
What else can I help you with?
What do neurons look like with cocaine injected and stressed?
Nicole is ugly.
What is neurospora?
This is a type of fungi whose spores have striations that look like neurons (nerve cells).
What will a person's neurons look like after a year with the disease ALD?
wish i knew i need the same thing
Do all neurons look the same?
yes.
Do neurons or neuroglia release neurotransmitters?
Neurons release neurotransmitters, not neuroglia. Neuroglia, also known as glial cells, primarily support and protect neurons in various ways, but they do not release neurotransmitters like neurons do.
What advantage to vertebrates neurons like lions have over early more primitive invertebrates neurons like insects?
Mocock.
What are neurons with two processes classified as?
Neurons with two processes are classified as bipolar neurons. These neurons have one dendrite and one axon extending from their cell body. Bipolar neurons are commonly found in specialized sensory pathways like the visual and olfactory systems.
Do all nuerons look the same?
No, neurons come in various shapes and sizes depending on their function. There are different types of neurons, such as sensory neurons, motor neurons, and interneurons, each with unique structures specialized for their roles in transmitting information throughout the body.
Whats the number of neurons in hydrogen?
Hydrogen does not have neurons. Neurons are specialized cells found in the brain and nervous system of animals, not in elements like hydrogen.
What do the lower neurons do?
You are probably speaking of "lower motor neurons." These are neurons that send information from the spinal cord to the muscles of the body & they travel within all most of the nerves of the body (like sciatic, median, etc). These neurons are controlled by "upper motor neurons" and control your muscles to allow you to be able to move.
Are the dead neurons in the cortex replaced by new neurons?
No, dead neurons in the cortex are not typically replaced by new neurons. The brain has limited capacity for neurogenesis, especially in the cortex. Dead neurons are usually not replaced, but the brain can adapt and reorganize to compensate for lost function through processes like synaptic plasticity.
What are neurons called that detect stimuli in the skin and eye?
sensory neurons
