Author: Shadab Chow

  • Polycythemia Vera

    Polycythemia Vera: Definition and Description of Polycythemia Vera: Polycythemia Vera (PV) is a type of blood cancer that originates in the bone marrow, characterized by the overproduction of red blood cells. This increase in red blood cell mass thickens the blood, leading to potential complications including clotting and cardiovascular issues. The disease is classified as…

  • Pollen

    Pollen: Definition and Description of Pollen: Pollen is a fine powdery substance produced by certain plants, including trees, grasses, and flowers, that contains the male gametes (sperm cells) of seed plants. This natural reproductive agent is critical for the process of fertilization in flowering plants. In humans, pollen is most well-known for its role in…

  • PMS

    PMS: Definition and Description of PMS: PMS, or Premenstrual Syndrome, is a collection of physical, emotional, and behavioral symptoms that occur in the luteal phase of the menstrual cycle, typically a week or two before menstruation. Medical professionals define PMS as a chronic condition experienced by many women of reproductive age, characterized by both emotional…

  • Pleuritis

    Pleuritis: Definition and Description of Pleuritis: Pleuritis, also known as pleurisy, is an inflammatory condition of the pleura, which is the thin tissue layer lining the lungs and chest cavity. This condition leads to sharp chest pain that worsens during breathing, coughing, or sneezing. Pleuritis can result from various underlying health issues and may indicate…

  • Pleura

    Pleura: Definition and Description of Pleura: The pleura is a vital anatomical structure consisting of two thin layers of tissue that surround the lungs and line the chest cavity. The outer layer, known as the parietal pleura, adheres to the chest wall, whereas the inner layer, called the visceral pleura, covers the lungs directly. The…

  • Platelet

    Platelet: Definition and Description of Platelet: Platelets, also known as thrombocytes, are small, disc-shaped cell fragments found in the blood. They are vital for blood clotting and play an essential role in hemostasis, which is the process of preventing and stopping bleeding. Platelets are produced in the bone marrow and released into the bloodstream. Normal…

  • Plasmapheresis

    Plasmapheresis: Definition and Description of Plasmapheresis: Plasmapheresis is a medical procedure that involves the separation and removal of plasma from the blood. During this process, blood is drawn from the patient, and a machine is used to separate the plasma from the red and white blood cells, as well as platelets. The plasma is then…

  • Plaque

    Plaque: Definition and Description of Plaque: Plaque refers to a buildup of substances in the bloodstream, organs, or tissues which can lead to serious health complications. Medically, plaque is often described as a fatty deposit that can accumulate in the arteries, known as atherosclerotic plaque. This condition can hinder blood flow and increase the risk…

  • Placebo

    Placebo: Definition and Description of Placebo: Placebo refers to an inert treatment or substance that has no therapeutic effect. In clinical trials, placebos are often used as a control to evaluate the effectiveness of new medications. The term is derived from the Latin word “placere,” meaning “to please.” Placebo effects can also occur when an…

  • Pimples (Acne)

    Pimples (Acne): Definition and Description of Pimples (Acne): Pimples, commonly known as acne, are a skin condition that occurs when hair follicles become clogged with oil, dead skin cells, and bacteria. Acne can manifest in various forms, including whiteheads, blackheads, and cystic lesions, and is most prevalent on the face, chest, and back. Medically, acne…