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  2. External lamina - Wikipedia

    en.wikipedia.org/wiki/External_lamina

    External lamina is a structure similar to basal lamina that surrounds the sarcolemma of muscle cells. It is secreted by myocytes and consists primarily of Collagen type IV, laminin and perlecan (heparan sulfate proteoglycan). Nerve cells, including perineurial cells and Schwann cells also have an external lamina-like protective coating. [1]

  3. Tunica externa - Wikipedia

    en.wikipedia.org/wiki/Tunica_externa

    A common pathological disorder concerning the tunica externa is scurvy, also known as vitamin C deficiency. Scurvy occurs because vitamin C is essential for the synthesis of collagen, and without it, the faulty collagen cannot maintain the vein walls and rupture, leading to a multitude of problems.

  4. Internal elastic lamina - Wikipedia

    en.wikipedia.org/wiki/Internal_elastic_lamina

    Micrograph showing the internal elastic lamina (thin pink wavy line - image edge mid-left to image edge bottom-centre-left). H&E stain. The internal elastic lamina or internal elastic lamella is a layer of elastic tissue that forms the outermost part of the tunica intima of blood vessels. It separates tunica intima from tunica media.

  5. Tunica media - Wikipedia

    en.wikipedia.org/wiki/Tunica_media

    The tunica media is made up of smooth muscle cells, elastic tissue and collagen.It lies between the tunica intima on the inside and the tunica externa on the outside.. The middle coat (tunica media) is distinguished from the inner (tunica intima) by its color and by the transverse arrangement of its fibers.

  6. Muscular artery - Wikipedia

    en.wikipedia.org/wiki/Muscular_artery

    Only the larger muscular arteries possess an external elastic lamina. The adventitia, the outermost layer, contains lymphatic capillaries, vasa vasorum, and nerves, which may extend into the outer parts of the media. [2] Under the microscope, muscular arteries can be identified by their clearly defined internal elastic lamina. In constricted ...

  7. Vasa vasorum - Wikipedia

    en.wikipedia.org/wiki/Vasa_vasorum

    Small vessels like vasa vasorum and vasa nervorum are particularly susceptible to external mechanical compression, [10] and thus are involved in pathogenesis of peripheral vascular and nerve diseases. A tear in vasa vasorum situated in tunica media layer of aorta may start pathologic cascade of events leading to aortic dissection. [4]

  8. Tunica intima - Wikipedia

    en.wikipedia.org/wiki/Tunica_intima

    The tunica intima (Neo-Latin "inner coat"), or intima for short, is the innermost tunica (layer) of an artery or vein.It is made up of one layer of endothelial cells (and macrophages in areas of disturbed blood flow), [1] [2] and is supported by an internal elastic lamina.

  9. Verhoeff's stain - Wikipedia

    en.wikipedia.org/wiki/Verhoeff's_stain

    Verhoeff's stain, also known as Verhoeff's elastic stain (VEG) or Verhoeff–Van Gieson stain (VVG), [1] is a staining protocol used in histology, developed by American ophthalmic surgeon and pathologist Frederick Herman Verhoeff (1874–1968) in 1908. [2] The formulation is used to demonstrate normal or pathologic elastic fibers.

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