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 mitosis and meiosis

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Difference between mitosis and meiosis

Topics

Mitosis

Meiosis

Occurs in

mitosis cell division increase number of somatic cells, immature germ cells

meiosis cell division produces mature germ cell

number of daughter cell produce after  division

2

4

chromosome number of daughter cells after cell division

Remain same

diploid (46)

Reduces by half

haploid (23)

identical / non-identical

identical (genetically same)

non-identical (genetically different)

one/ two division processes

one division process

two division process

cross over

not occurred

occurred

Pairing of homologus chromosome

Not occurred

Occurred

Function

Takes part in general growth and  healing and repair.

Takes part in the formation of gametes and maintenance of chromosome number.

 






















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