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 secretory portion & ductal portion of eccrine sweat gland

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Difference between secretory portion & ductal portion of eccrine sweat gland 


Secretory portion
Ductal portion
Cells size is large
Cells size is small
Darkly stain
 Lightly stain
Large in diameter  
Small in diameter
Secretory portion is surrounded by myoepithelium  
Ductal portion is surrounded by myoepithelial cell

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