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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Structures pierce by perineal membrane of male vs female

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Structures pierce by perineal membrane of male and female
Perineal membrane of male
Perineal membrane of female
It is pierce by urethra
It is pierce by urethra & vagina
Ducts of the bulbourethral glands
No ducts pierce the membrane
Artery and nerve of the bulb of penis
Artery and nerve of the bulb of vestibule 
Dorsal artery of the penis
Dorsal artery of the clitoris
Deep artery of the penis
Deep artery of the clitoris
Posterior scrotal nerve and vessels
Posterior labial  nerve and vessels
Branches of the perineal nerve to superficial perineal muscles
Branches of the perineal nerve to superficial perineal muscles

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