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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 parakeratinized stratified squamous epithelium and keratinized stratified squamous epithelium

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Difference between parakeratinized stratified squamous epithelium and keratinized stratified squamous epithelium parakeratinized stratified squamous epithelium keratinized stratified squamous epithelium Nucleated cells are present at stratum corneum layer No nucleated cells are present at stratum corneum layer Stratum lucidum layer is absent Present Incomplete keratinization Complete keratinization Keratohyaline granule disperse Keratohyaline granule well developed Less define stratum granulosum Well   define stratum granulosum
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Difference between arteriole & capillary

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  Difference between     Arteriole & capillary Vessel Diameter Tunica intima (inner layer) Tunica media Middle layer Tunica adventitia Outer layer Vasa vasorum Arteriole 10–100 μm This layer contain 1. endothelium & its basement membrane 2. Subendothelial connective tissue is formed by loose connective tissue which contain smooth muscle cells 3. no   internal elastic lamina      Circularly arrange smooth muscle cells layers(1-2 cells layer)   with variable amounts of elastin, reticular fibers, and proteoglycans are interposed between the smooth muscle cells   Thin, ill-defined sheath of connective tissue Absent Capillary 4–10 μm This layer contain endothelium & its basement membrane     None ...
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Difference between elastic artery, muscular artery, small size artery, arteriole and capillary

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  Difference between elastic artery, muscular artery, small size artery, arteriole and capillary   Vessel Diameter Tunica intima (inner layer) Tunica media Middle layer Tunica adventitia Outer layer Vasa vasorum Large size artery or   Elastic artery >10 mm This layer contain 1. endothelium & its basement membrane 2. Subendothelial connective tissue is formed by loose connective tissue which contain smooth muscle cells 3. internal elastic lamina is present but cannot see clearly in histological slide   Circularly arrange smooth muscle layers are separated by fenestrated elastic lamina Connective tissue rich with longitudinally arrange collagen fibres Elastic fibers Thinner than tunica media Present Medium sized artery or muscular artery 2–10 mm This layer contain ...
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Difference between elastic artery and muscular artery

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  Vessel Diameter Tunica intima (inner layer) Tunica media Middle layer Tunica adventitia Outer layer Vasa vasorum Large size artery or   Elastic artery >10 mm This layer contain 1. endothelium & its basement membrane 2. Subendothelial connective tissue is formed by loose connective tissue which contain smooth muscle cells 3. internal elastic lamina is present but cannot see clearly in histological slide   Circularly arrange smooth muscle layers are separated by fenestrated elastic lamina Connective tissue rich with longitudinally arrange collagen fibres Elastic fibers Thinner than tunica media Present Medium sized artery or muscular artery 2–10 mm This layer contain 1. endothelium & its basement membrane 2. Subendothelial connective tissue is formed by loose c...
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Difference between T lymphocyte and B lymphocyte

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Difference between T lymphocyte and B lymphocyte <script data-ad-client="ca-pub-3738618711723990" async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> topic  T lymphocyte B lymphocyte Origin Bone marrow Bone marrow Mature Thymus Bone marrow Location of mature cell Mature cell present within the lymph node Mature cell present out side the lymph node Receptors Bear TCR receptors Bear BCR receptor Viral antigens Recognized viral antigens on the outside of infected cells    Recognized   antigens on the surface of bacteria and viruses Life span                 Long Short Type of immunity Cell mediated immunity Humoral or Antibodies...
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