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 fascia camper and fascia scarpa of superficial fascia of abdomen

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Difference between fascia camper and fascia scarpa of superficial fascia of abdomen

Fascia camper

Fascia scarpa

It is the superficial  fatty layer of superficial fascia of abdomen  

It is the inner membranous layer of superficial fascia of abdomen  

It is continuous with thigh , perineum , around the anal origin, mons pubis and labia majora

It is not continuous with thigh

It is not continuous with penis

In penis it is continuous  as superficial fascia of penis

It is not continuous in scrotum

In scrotum it is replaced by dartos muscle

It is continuous in perineum

It is continuous in perineum as colles’ fascia

It is present in both mons pubis and labia majora

It is present in labia majora

 

 

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