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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 Amelia, phocomelia and meromelia

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Difference between Amelia, phocomelia and meromelia Amelia Phocomelia Meromelia It is a congenital anomalies characterized by complete absence of all four limbs It is a congenital anomalies characterized by rudimentary hands and feet which are directly attached   to the trunk It is a congenital anomalies characterized by shortening of all three segments of limbs  
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Difference between right principal bronchus and left principal bronchus : lecture notes

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Difference between right principal bronchus and left principal bronchus Right principal bronchus Left principal bronchus Shorter and wider Longer and narrower It is approximately 2.5 cm long The mean±SD luminal diameter of the right principal bronchus was 1.41±0.23, The mean diameter of the left main bronchus (LMB) was 11.6±1.9 mm . More vertically place within the body More horizontal than the right it divides into bronchi before it enter within the hilum it divides into bronchi after enter within the hilum It forms 20-30 degree angle It forms 40-60 degree angle It enter the hilum at the level of verterbra T5 It enter the hilum at the level of verterbra T6 It gives off three secondary bronchus for three lobe of right lung It gives off two secondary bronchus for two lobe of left lung The right ...
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Difference between open and close splenic circulation

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Difference between open and close splenic circulation   Open circulation:   Closed circulation:   Splenic artery →the trabecular artery →central artery →penicillar arteries→terminal   arterial capillaries (TAC) → red pulp →splenic sinusoids →splenic vein   Splenic artery →the trabecular artery →central artery →penicillar arteries→ terminal   arterial capillaries (TAC) →splenic sinusoids →splenic vein    
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Difference between T Lymphocyte and B lymphocyte : lecture note

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 Difference between T Lymphocyte and B lymphocyte  Lymphocyte Origin Maturation and differentiation occur in Final destination T lymphocyte Bone marrow Thymus Mid & deep zone of lymph node, in periarterial lymphatic sheath of spleen, mucosa associate lymphatic tissue B lymphocyte Bone marrow Bone marrow superficial zone of lymph node, around the periarterial lymphatic sheath of white pulp of spleen, mucosa associate lymphatic tissue
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