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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 cytotrophoblast and syncytotrophoblast

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Difference between cytotrophoblast and syncytotrophoblast  Cytotrophoblast Syncytotrophoblast Inner layer of trophoblast Outer layer of trophoblast It is the trophoblastic stem cells It is not stem cells It has important role in implantation It invades the wall of uterus It is not establishes nutritional supply between mother to fetus It establishes nutritional supply between mother to fetus It can differentiated It is terminally differentiated cell This tissue   is formed by individual cell This tissue is specialized and it is   multinucleated with no individual cell This layer does not produce hormones The syncytiotrophoblast secretes progesterone and leptin in addition to human chorionic gonadotropin (hCG) and human placental lactogen (HPL); hCG prevents degeneration of the corpus luteum.
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Difference between pinealocytes and neuroglial cell of pineal body

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Difference between pinealocytes and neuroglial cell of pineal body a)       Parenchymal cells : 1.       Pinealocytes   : it is larger than neuroglial cells contain large, pale nuclei with prominent nuclei 2.       Neuroglial cells neuroglial cells posses smaller, denser nuclei than the pinealocytes. 
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Difference between follicular cells and para-follicular cells

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Difference between follicular cells and para-follicular cells  Topics Follicular cells Para-follicular cells Secretion T3 and T4 Calcitonin Shape and size of cell It is smaller than the parafollicular cell. The shape of the cell vary according to functional state of gland: from simple squamous to low columnar epithelium It is larger than the follicular cell and the shape of the cell is Round Staining It takes more staining It takes less staining Exposure to luminal surface It is exposed to luminal surface It is never exposed to luminal surface, it is located peripheral part of thyroid follicle   Nuclei It contains comparatively dark nuclei with two or three prominent nucleoli It contain large pale stain nuclei Golgi complex Golgi complex are supranuclear in position Larg...
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