Category: S

  • Sarcoplasm

    The protoplasm of muscles cells. Semiliquid cytoplasm in muscle membrane. Intercellular material of the cell, particularly striated muscle cells. The cytoplasm of muscle cells, especially striated muscle cells.  

  • Sarcolemma

    The cell membrane of muscle fiber. The cell membrane of a muscle cell. Invaginations called transverse tubules (T-tubules) penetrate the cytoplasm adjacent to the myofibrils and carry the action potential to the interior of the muscle cell. The thin covering that encases each striped muscle fiber.  

  • Saphenous vein

    The long vein near the inner surface of the thigh. The often tied off in the treatment of varicose veins. One of two veins which take blood from the foot up the leg. Either of two superficial veins of the leg, draining blood from the foot. The long saphenous vein, the longest vein in the…

  • Sanorex

    A commercial preparation of mazindol.  

  • Sanitary landfill

    An area where solid waste products are systematically buried.  

  • Sanguine

    Abounding in blood.  

  • Sandoz pharmaceutical company

    The first company granted permission by the Food and Drug Administration to conduct research into the possible medical uses of LSD.  

  • Sampling variability

    In epidemiology, the differences between the findings for all possible samples from the same or equal populations.  

  • Sample size

    In epidemiology, the actual number of subjects chosen for study to be representative of a larger population.  

  • Salvarsan

    An arsenical compound used as a treatment for syphilis before the development of antibiotics.