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Showing posts from February, 2020

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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Easy difference between cytoplasm and cytosol

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Difference between cytoplasm and cytosol  Cytoplasm Cytosol Cytoplasm   is the fluid that consists of all of the contents outside of the nucleus sand enclosed within the cell membrane of a cell.  The aqueous component of the cytoplasm of a cell, within which various organelles and particles are suspended Cytoplasm = cytosol + organelles & inclusion Cytosol = cytoplasm - organelles & inclusion
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Easy difference between protoplasm and cytoplasm

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Difference between protoplasm and cytoplasm  Topic Protoplasm Cytoplasm Definition Protoplasm   is the colorless material consisting of the living part of a cell, including the cytoplasm, nucleus, and other organelles. Cytoplasm   is the fluid that consists of all of the contents outside of the nucleus sand enclosed within the cell membrane of a cell.  Structure Protoplasm   is the collection of the cell membrane, cytoplasm, and nucleus. Cytoplasm   is the fluid part of the protoplasm. Nucleus Protoplasm  includes the nucleus. Nucleus is not included in the  cytoplasm. Summary Protoplasm = cytoplasm with organelles and inclusions + nucleus Cytoplasm = protoplasm – nucleus
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Difference between pre-axial and post axial border of upper and lower limb

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Pre-axial (cranial) and post-axial border of upper and lower limb •          It demarcates portion of the limb bud that lies cranial to the axis of the limb e.g radial aspect of upper limb and tibial aspect of lower limb. It marked out by the cephalic vein in the upper limb, and the great saphenous vein in the lower limb •          clinical relevance : pre-axial polydactyly involves first digit of the hand (radial side) or first digit of the foot (big toe) Post-axial (caudal) border it demarcates portion of the limb bud that lies caudal to the axis of the limb e.g. ulnar aspect of upper limb and fibular aspect of lower limb. It marked out by the basilic vein in the upper limb, and the small saphenous vein in the lower limb Pre-axial border Post-axial border Upper limb It extends from mid...
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