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  2. Diaphragm (optics) - Wikipedia

    en.wikipedia.org/wiki/Diaphragm_(optics)

    In optics, a diaphragm is a thin opaque structure with an opening at its center. The role of the diaphragm is to stop the passage of light, except for the light passing through the aperture . Thus it is also called a stop (an aperture stop , if it limits the brightness of light reaching the focal plane, or a field stop or flare stop for other ...

  3. Thoracic diaphragm - Wikipedia

    en.wikipedia.org/wiki/Thoracic_diaphragm

    Structure of diaphragm shown using a 3D medical animation still shot. The thoracic diaphragm, or simply the diaphragm (/ ˈ d aɪ ə f r æ m /; [1] Ancient Greek: διάφραγμα, romanized: diáphragma, lit. 'partition'), is a sheet of internal skeletal muscle [2] in humans and other mammals that extends across the bottom of the thoracic ...

  4. Diaphragm - Wikipedia

    en.wikipedia.org/wiki/Diaphragm

    Diaphragm (optics), a stop in the light path of a lens, having an aperture that regulates the amount of light that passes; Diaphragm (acoustics), a thin, semi-rigid membrane that vibrates to produce or transmit sound waves; Diaphragm (birth control), a small rubber dome placed in the vagina to wall off the cervix, thus preventing sperm from ...

  5. Continuous diaphragm sign - Wikipedia

    en.wikipedia.org/wiki/Continuous_diaphragm_sign

    The diaphragm typically appears as two separate, curved outlines (hemidiaphragms) on a chest X-ray due to the heart and mediastinum obscuring its central portion. When air accumulates in the mediastinum or peritoneal cavity, it outlines the diaphragm, making its central portion visible and creating the appearance of a continuous line. [ 4 ]

  6. Bright-field microscopy - Wikipedia

    en.wikipedia.org/wiki/Bright-field_microscopy

    A bright-field microscope has many important parts including; the condenser, the objective lens, the ocular lens, the diaphragm, and the aperture. Some other pieces of the microscope that are commonly known are the arm, the head, the illuminator, the base, the stage, the adjusters, and the brightness adjuster.

  7. Human anatomy - Wikipedia

    en.wikipedia.org/wiki/Human_anatomy

    Gross anatomy has become a key part of visual arts. Basic concepts of how muscles and bones function and deform with movement is key to drawing, painting or animating a human figure. Many books such as "Human Anatomy for Artists: The Elements of Form", are written as a guide to drawing the human body anatomically correctly. [4]

  8. Median arcuate ligament - Wikipedia

    en.wikipedia.org/wiki/Median_arcuate_ligament

    The median arcuate ligament is formed by the right and left crura of the diaphragm. [1] The crura connect to form an arch, behind which is the aortic hiatus , through which pass the aorta , the azygos vein , and the thoracic duct .

  9. Central tendon of diaphragm - Wikipedia

    en.wikipedia.org/wiki/Central_tendon_of_diaphragm

    The central tendon of the diaphragm is a thin but strong aponeurosis situated slightly anterior to the vault formed by the muscle, resulting in longer posterior muscle fibers. It is inferior to the fibrous pericardium , which fuses with the central tendon of the diaphragm via the pericardiacophrenic ligament .