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اللي يعرف يدخل موضوع محتاج للافاده

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  • #1

    اللي يعرف يدخل موضوع محتاج للافاده

    السلام عليكم

    كيفكم ان شاء الله بخير

    انا فني مختبر وطلب مني الدكتور تقرير عن(الهستو)
    وطلب مني نقاط وهي
    1_نبذه مختصره عن الهستو
    2-اول ماتستلم العينه ماذا تفعل
    3-ماذا يحصل في جهاز automatic tissue processor
    4-الصبغات ووقتها

    الله يعطيكم العافيه ويرحم والديكم ياليت احد يفيدني لاني متورط :sm197::sm197:
    الكلمات الدلالية (Tags): لا يوجد
  • #2
    في موضوع مثبت في القسم يمكن يفيدك

    تعليق

    • #3
      لو سمحت تقولي متى تبغاه
      لأنو كمان أنا مطلوب مني ريبورت بالأنجليزي
      بس باقي ماخلصت منو إذا عندك وقت أنزله نهايه الويك

      وإذا تبغاه عربي فيه موضوع منزل في القسم

      تعليق

      • #4
        المشاركة الأصلية بواسطة مختبراوي مشاهدة المشاركة
        السلام عليكم

        وعليكم السلام ورحمة الله وبركاته ,, حياك الله

        كيفكم ان شاء الله بخير

        الحمد لله انت كيف حالك ؟؟

        انا فني مختبر وطلب مني الدكتور تقرير عن(الهستو)
        وطلب مني نقاط وهي
        1_نبذه مختصره عن الهستو

        Histology (Gr. histo, web or tissue, + logos, study) is the study of the tissues of the body and of how these tissues are arranged to constitute organs. Four fundamental tissues are recognized: epithelial tissue, connective tissue, muscular tissue, and nervous tissue.

        Tissues are made of cells and extracellular matrix, two components that were formerly considered separate entities. The extracellular matrix consists of many kinds of molecules, some of which are highly organized and form complex structures, such as collagen fibrils and basement membranes. The main functions formerly attributed to the extracellular matrix were to furnish mechanical support for the cells, to transport nutrients to the cells, and to carry away catabolites and secretory products. In addition to these functions, it is now known that cells not only produce extracellular matrix components but are also influenced by them. There is thus an intense interaction between cells and matrix. Moreover, many molecules of the matrix are recognized by and attach to receptors present on cell surfaces. Most of these receptors are molecules that cross the cell membranes and connect to molecules within the cytoplasm. Thus, cells and extracellular matrix form a continuum that functions together and reacts to stimuli and inhibitors together.

        Each of the fundamental tissues is formed by several types of cells and typically by specific associations of cells and extracellular matrix. These characteristic associations facilitate the recognition of the many subtypes of tissues by students. Most organs are formed by an orderly combination of several tissues, except the central nervous system, which is formed almost solely by nervous tissue. The precise combination of these tissues allows the functioning of each organ and of the organism as a whole.

        The small size of cells and matrix components makes histology dependent on the use of microscopes. Advances in chemistry, physiology, immunology, and pathology—and the interactions among these fields—are essential for a better knowledge of tissue biology. Familiarity with the tools and methods of any branch of science is essential for a proper understanding of the subject. This chapter reviews some of the more common methods used to study cells and tissues and the principles involved in these methods.

        2-اول ماتستلم العينه ماذا تفعل
        they must be sectioned to obtain thin, translucent sections. However, living cells, very thin layers of tissues, or transparent membranes of living animals (eg, the mesentery, the tail of a tadpole, the wall of a hamster's cheek pouch) can be observed directly in the microscope without first being sectioned. It is then possible to study these structures for long periods and under varying physiological or experimental conditions. In most cases, however, tissues must be sliced into thin sections and attached on glass slides before they can be examined. These sections are precisely cut from tissues previously prepared for sectioning using fine cutting instruments called microtomes.

        The ideal microscope tissue preparation should be preserved so that the tissue on the slide has the same structure and molecular composition as it had in the body. This is sometimes possible but—as a practical matter—seldom feasible, and artifacts, distortions, and loss of components due to the preparation process are almost always present.

        3-ماذا يحصل في جهاز automatic tissue processor

        ما اعرف ولا شايفة هالجهاز

        4-الصبغات ووقتها
        http://library.med.utah.edu/WebPath/HISTHTML/HISTOTCH/HISTOTCH.html
        هذا الموقع في الصبغات وبعد طريقة عمل وكل شي
        الله يعطيكم العافيه ويرحم والديكم ياليت احد يفيدني لاني متورط :sm197::sm197:

        بالتوفيق يا رب ,,,

        وللعلم معلومات في البداية من كتاب Basic Histology

        تعليق

        • #5
          عندي بعض المعلومات
          ان شاء الله اضعها لكم

          موفقين ..

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