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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 cervical and lumbar vertebra

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 Difference between cervical and lumbar vertebra  Topic Cervical Lumbar body 1. Smallest of all vertebra 2.Transverse measurement is greater than anterior posterior measurement 3.Superior surface is concave 1.Body is big size and kidney shaped 2. Transverse measurement is greater than anterior posterior measurement 3. body is thick in front than behind Transverse process 1.It is pierce by foramen transversarium 2.It has anterior and posterior root which is connected by costo-transverse bar 1. Thin and elongated 2. An accessory process is present at its posterior inferior process Spinous process Short , bifid and horizontal It is quadrangular in shape and lies horizontally Laminae Long and narrow Short , strong and broad   Pedicle Project laterally and backwards Sh...
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Difference between thoracic and lumbar vertebra

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  Difference between  thoracic and lumbar vertebra Topic Thoracic Lumbar body 1.Body is heart shaped 2.Anterior posterior measurement is greater than the transverse measurement 3. body bears costal facet   1.Body is big size and kidney shaped 2. Transverse measurement is greater than anterior posterior measurement 3. body is thick in front than behind Transverse process 1. Big size face laterally and backwards   2. Each process bears a facet which articulate with numerically corresponding tubercle of rib 1. Thin and elongated 2. An accessory process is present at its posterior inferior process Spinous process It is directed downward and backward It is end with tubercle It is quadrangular in shape and lies horizontally Laminae Short , broad & thick Short , strong and broad   ...
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Difference between cervical and thoracic vertebra

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  Difference between cervical and thoracic  vertebra Topic Cervical Thoracic body 1. Smallest of all vertebra 2.Transverse measurement is greater than anterior posterior measurement 3.Superior surface is concave 1.Body is heart shaped 2.Anterior posterior measurement is greater than the transverse measurement 3. body bears costal facet   Transverse process 1.It is pierce by foramen transversarium 2.It has anterior and posterior root which is connected by costo-transverse bar 1. Big size face laterally and backwards   2. Each process bears a facet which articulate with numerically corresponding tubercle of rib Spinous process Short , bifid and horizontal It is directed downward and backward It is end with tubercle Laminae Long and narrow Short , broad & thick Pedicle ...
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