explain neurons-,-,,-,,-,-,-,?
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[Neurons]..
ā” These are also k/a nerve fibres/ nerve cells.
> Nerve cells are the structural and functional unit of nervous system.
> In are nervous system more than 10^11 neurons are present.
> Majority neurons are present n CNS and particularly in brain.
> The length of neurone may very frm 1 mm to 1m.
> Neurons are the longest cells in animals.
> A mature neurone generally do not divide therefore neurons have min.. powee of regeneration or/ repair.
Hope it helps uā
ā” These are also k/a nerve fibres/ nerve cells.
> Nerve cells are the structural and functional unit of nervous system.
> In are nervous system more than 10^11 neurons are present.
> Majority neurons are present n CNS and particularly in brain.
> The length of neurone may very frm 1 mm to 1m.
> Neurons are the longest cells in animals.
> A mature neurone generally do not divide therefore neurons have min.. powee of regeneration or/ repair.
Hope it helps uā
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onion is a microscopic structure composed to three major parts name name the cell body dendrite and action the cell body contains contents cytoplasm, nissal granules. the Apple is a long fibre the distal in of which is branched.branch terminate as a bulb like structure called synaptic knob which process sympathetic physical contening Chemicals like neurotransmitters .the action transmit nerve impulse away from the cell body to a synapse or to a neuromuscular Junction .based on the number of action and dendrites the neurones are divided into three types .the number one multipolar
it has one action and two or more dendrites found in Cerebral cortex .
second one is bipolar with one action and one dendrite found in retina of eye .
what is unipolar with one silver with one action and only found usually in the embryonic stage .
are two types of action namely myelinated and non myelinated. the myelinated nerve r envelope with oneself which form emergency around the axon. apps between two adjacent myelinated sheet are called nodal of ranvier
myelinated nerve fibres are found in spinal and cranial nerve. unmyelinated fibre is enclosed by a Swan stilted does not form a myelin sheat in around the axon. it is commonly found in autonomous and sympatric neural system.
it has one action and two or more dendrites found in Cerebral cortex .
second one is bipolar with one action and one dendrite found in retina of eye .
what is unipolar with one silver with one action and only found usually in the embryonic stage .
are two types of action namely myelinated and non myelinated. the myelinated nerve r envelope with oneself which form emergency around the axon. apps between two adjacent myelinated sheet are called nodal of ranvier
myelinated nerve fibres are found in spinal and cranial nerve. unmyelinated fibre is enclosed by a Swan stilted does not form a myelin sheat in around the axon. it is commonly found in autonomous and sympatric neural system.
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