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 proximal and distal convulated tubule of kidney

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Difference between proximal and distal convulated tubule


topics
proximal convulated tubule
distal convulated tubule
diameter
40-60 μm
20-50  μm
lumen
small and irregular due to microvilli
large and regular
lining epithelium
cuboidal with large number of microvilli (brush border)
cuboidal no brush border
staining
acidophilic , more pink due to large number of mitochondria
less acidophilic less pink
number of cells in each cross section
cells size are larger so number of cells are less in cross section of proximal convulated tubule  
cell size are smaller so more number of cells are found in cross section of distal convulated tubule
Cytoplasm
more
less

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