Year: 2021

  • Physiological solution

    One of a group of solutions used to maintain tissues in a viable state. These solutions contain specific concentrations of substances that are vital for normal tissue function (e.g. sodium, potassium, calcium, chloride, magnesium, bicarbonate, and phosphate ions, glucose, and oxygen). An example of such a solution is ‘Ringer’s solution.  

  • Phthirus

    A widely distributed genus of lice. The crab (or pubic) louse, P. pubis, is a common parasite of man that lives permanently attached to the body hair, particularly that of the pubic or perianal regions but also on the eyelashes and the hairs in the armpits. Crab lice are not known to transmit disease but…

  • Phototaxis

    Movement of a cell or organism in response to a stimulus of light. The reaction and movement of cells and microorganisms under the stimulus of light.  

  • Photopic

    Relating to or describing conditions of bright illumination. For example, photopic vision is vision in bright light, in which the cones of the retina are responsible for visual sensation.  

  • Photodermatitis

    A condition in which the skin becomes sensitized to a substance (certain antiseptics used in soaps may be a trigger) but only those parts of the skin subsequently exposed to light react by developing dermatitis. Sensitivity of the skin to light; may be due to photoallergy or to phototoxic reaction.  

  • Phosphofructokinase

    An enzyme that catalyzes the conversion of fructose-6-phosphate to fructose- 1,6-diphosphate. This is an important reaction occurring during the process of glycolysis. A glycolytic enzyme that catalyzes phosphorylation of fructose-6-phosphate by adenosine triphosphate. A key enzyme that functions as a bottleneck in the metabolic pathway of glycolysis. This enzyme plays a crucial role in regulating…

  • Phosphatidylserine

    A cephalinlike phospholipid containing the amino acid serine. It is found in brain tissue.  

  • Phosphatemia

    The presence of phosphates in the blood. Sodium, calcium, potassium, and magnesium phosphates are normal constituents.  

  • Phosgene

    A poisonous gas developed during World War I. It is a choking agent, acting on the lungs to produce edema, with consequent respiratory and cardiac failure. A poisonous gas that causes nausea and suffocation when inhaled; used in chemical warfare.  

  • Phormia

    A genus of nonbloodsucking flies, commonly known as blowflies. The maggot of P. regina normally breeds in decaying meat but it has occasionally been found in suppurating wounds, giving rise to a type of myiasis. A genus of blowflies to the family Calliphoridae. Their larvae normally live in decaying flesh of dead animals, belonging but they…