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Showing posts from December, 2016

Comparison between tract and nerve

  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...

Difference between male and female hipbone

Difference between male and female hip bone Topic Male hip bone Female hip bone Ischiopubic ramus Everted Not Everted Ischial spine Inverted Not Inverted Greater sciatic notch less wider    Wider  Diameter of acetabulum Larger Smaller Preauricular salcus Usually absent Deep Obturator foramen Large and oval Small and triangular iliac crest higher smaller thickness thicker thinner weight heavier lighter