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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 Klinfelter’s syndrome and Turner’s syndrome

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  Difference between Klinfelter’s   syndrome and Turner’s syndrome Top ic Klinfelter’s   syndrome   Turner’s syndrome Definition This syndrome is caused by the presence of an extra sex chromosome (XXY instead of XY) This syndrome is caused by the lack of sex chromosome (XO instead of XX). Genetic disorder It is a numerical genetic disorder also call trisomy It is a numerical genetic disorder also call monosomy Genotype The trisomy of sex chromosome (2n+1), here one extra X chromosome- XXY, are present in males. Monosomy of sex chromosome (2n-1), here only one X chromosome, is present in females. Chromosomal complement in somatic cell 47XXY 45X0 Phenotype . Affected individuals are phenotypically male Affected individuals are phenotypically female Occurrence ...
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Difference between anterior and posterior fontanelle

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  Difference between anterior and posterior fontanelle    Anterior fontanelle Posterior fontanelle It is also known as bregmatic fontanelle, frontal fontanelle It is alos known as lambdoid fontanelle, occipital fontanelle It is a diamond-shaped membrane-filled space. It  is triangle-shaped.   It measures about 4 cm in its antero-posterior and 2.5 cm in its transverse diameter.  Less than 1 cm It is  located between the two frontal and two parietal bones of the developing fetal skull. It is located between two parietal bones and occipital bone of the developing fetal skull It is at the junction of the coronal suture and sagittal suture. It lies at the junction between the  sagittal suture  and  lambdoid suture The anterior fontanelle typic...
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