what is neurone Where are they found and what is the function of neurone
Answers
Neurons (also called neurones or nerve cells) are the fundamental units of the brain and nervous system, the cells responsible for receiving sensory input from the external world, for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between. More than that, their interactions define who we are as people. Having said that, our roughly 100 billion neurons do interact closely with other cell types, broadly classified as glia (these may actually outnumber neurons, although it’s not really known). The creation of new neurons in the brain is called neurogenesis, and this can happen even in adults.
The cell bodies of the sensory neurons leading to the spinal cord are located in clusters, the dorsal root ganglia (DRG), next to the spinal cord. Their axon extends in both directions: a peripheral axon to receptors at the periphery and a central axon passing into the spinal cord.The basic functions of a neuron
If you think about the roles of the three classes of neurons, you can make the generalization that all neurons have three basic functions. These are to:
Receive signals (or information).
Integrate incoming signals (to determine whether or not the information should be passed along).
Communicate signals to target cells (other neurons or muscles or glands).
These neuronal functions are reflected in the anatomy of the neuron.
Answer:
Explanation:
Neuron is a highly specialized cell which is responsible for transmission of nerve impulses. The neuron consists of the following parts:
Cyton : cyton is like a star-shaped; with many hair-like structures out of the margin. These hair-like structures are dendrites. Dendrites receive the nerve impulses.
Axon: This is the tail of the neuron. It ends in several hair-like structures; called axon terminals. The axon terminals relay nerve impulses.
Myelin Sheath: There is an insulator cover around the axon. The myelin sheath insulates the axon against nerve impulses from the surroundings.
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