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 male and female skull

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Difference between male and female skulls
Topics
Male skull
Female skull
Superciliary arches and
Prominent
Not prominent
glabella
Prominent
Not prominent
Mastoid process
Very prominent
Not prominent
Nuchal lines
Very prominent
Not prominent
Frontal &
parietal tuberosity
Less prominent
More Prominent
Angle of mandible
Everted
Inverted
Wt
More
Less
Wall thickness
Thicker
Thinner
Vault of skull
flattened
rounded 
Capacity 
More 
Less 
Tympanic plate
Larger and margins are rounded
Smaller and margins are less rounded
Temporal line
More prominent
Less prominent
Orbit
Square and relatively smaller  
Round and larger
Supra orbital margin
More rounded
Sharp
Frontal bone
Low and sloped and less rounded
Higher and vertical and rounded  continuous directly with nasal bone
Zygomatic bone
Massive
Less massive
Width of skull
Greater in male
Smaller in female
Occipital condyle
Larger
Smaller
Chin
Square
Pointed
Angle of mandible
Everted
Inverted
Surface of the skull
Rough and bumpy
Smooth

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