Comparison between tract and nerve

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  Comparison between tract and nerve Nerve Nerve contain bundle of axons (nerve fibers) in the peripheral nervous system (PNS) that transmits signals between the central nervous system (CNS) and other parts of the body. It is the most important part of peripheral nervous system Location: Peripheral nervous system. Structure: Made of axons, connective tissue layers (endoneurium: axon is surrounded by it , perineurium: bundle of axons are surrounded by it, epineurium: whole nerve trunk is surrounded by it), and blood vessels. It gets myelination by Schwann cell   Function: Carries sensory signals to the CNS (afferent) from peripheral part of body or motor signals carry from from the CNS (efferent) to target organs like skeletal muscle, cardiac muscle, smooth muscle or glands Example: Sciatic nerve, median nerve, except optic nerve (though optic nerve is technically part of CNS in develop...
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Difference between protoplasmic astrocyte and fibrous astrocyte

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Difference between protoplasmic astrocyte and fibrous astrocyte

Protoplasmic astrocyte
Fibrous astroctye
More found in gray matter of brain
More found in white matter of  brain
Numerous in number  
Fewer in number
It is star shape contain short branching cytoplasmic processes
It is relatively straight .
Few fibrils within the cytoplasm
More  fibrils within the cytoplasm

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