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Drugs and diseases reference index

Drugs and diseases reference index
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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «P»:

  1. Periosteum Periosteum
    Periosteum: The periosteum is a dense membrane composed of fibrous connective tissue that closely wraps (invests) all bone, except that of the articulating surfaces in joints which are covered by a synovial membrane. "Peri-" is a prefix borrowed from the Greek meaning "around or about" and "-os...
  2. Periostitis Periostitis
    Periostitis: Inflammation of the periosteum, a dense membrane composed of fibrous connective tissue that closely wraps (invests) all bone, except the bone of articulating surfaces in joints which are covered by synovial membranes. The word "periotitis" may seem like Greek to you. "Peri-" is a ...
  3. Periostoma Periostoma
    Periostoma: A benign tumor arising from the periosteum, the dense membrane composed of fibrous connective tissue that closely wraps (invests) all bone (except the articular surfaces of bone in joints which are covered by synovial membranes)....
  4. Peripheral Peripheral
    Peripheral: Situated away from the center, as opposed to centrally located. For example, peripheral vision means the type of vision that allows one to see objects that are not in the center of one's visual field. The word "peripheral" comes from the Greek "peripheria" ("peri-", around or about +...
  5. Peripheral artery disease Peripheral artery disease
    Peripheral artery disease: A form of peripheral vascular disease in which there is partial or total blockage of an artery, usually one leading to a leg or arm. Leg artery disease and arm artery disease are somewhat different. Leg artery disease is usually due to atherosclerosis. Fatty deposits buil...
  6. Peripheral blood stem cell transplantation Peripheral blood stem cell transplantation
    Peripheral blood stem cell transplantation: A new technique in which stem cells are obtained from a patient's blood and used in bone marrow transplantation. Stem cells are small, round cells with a squat nucleus and scant surrounding cytoplasm. Although unremarkable in appearance, stem cells can ...
  7. Peripheral insulin resistance Peripheral insulin resistance
    Peripheral insulin resistance: Failure of target tissues to increase glucose disposal in response to insulin. See also: Insulin resistance....
  8. Peripheral iridectomy Peripheral iridectomy
    Peripheral iridectomy: A surgical procedure in which a hole is made in the periphery (outer part) of the iris by removing a full-thickness piece from the iris in order to treat a specific type of glaucoma called narrow-angle glaucoma (or angle-closure glaucoma)....
  9. Peripheral nervous system Peripheral nervous system
    Peripheral nervous system (PNS): That portion of the nervous system that is outside the brain and spinal cord. The peripheral nervous system (PNS) is one of the two major divisions of the nervous system. The other is the central nervous system (CNS) which is made up of the brain and spinal cord. The...
  10. Peripheral neuropathy Peripheral neuropathy
    Peripheral neuropathy: A problem with the functioning of the nerves outside the spinal cord. Symptoms may include numbness, weakness, burning pain (especially at night), and loss of reflexes. There are many causes of peripheral neuropathy, including diabetes, certain drugs, kidney failure, and vita...
  11. Peripheral pulmonary stenosis with cholestasis Peripheral pulmonary stenosis with cholestasis
    Peripheral pulmonary stenosis with cholestasis: Also known as arteriohepatic dysplasia or Alagille syndrome, this ia a genetic disorder characterized by jaundice in the newborn period, liver disease with cholestasis, peripheral pulmonic stenosis and unusual face. Children with Alagille syndro...
  12. Peripheral vascular disease Peripheral vascular disease
    Peripheral vascular disease: A disease of blood vessels outside the heart. Peripheral vascular disease (PVD) affects the peripheral circulation, as opposed to the cardiac circulation. PVD comprises diseases of both peripheral arteries and peripheral veins. PVD is sometimes incorrectly used as a syno...
  13. Peripheral vision Peripheral vision
    Peripheral vision: Side vision. The ability to see objects and movement outside of the direct line of vision. Peripheral vision is the work of the rods, nerve cells located largely outside the macula (the center) of the retina. The rods are also responsible for night vision and low-light vision but...
  14. Periphery Periphery
    Periphery: 1. The outside or surface of a structure; the portion outside the central region. 2. The circumference of a circle or other geometric figure....
  15. Peristalsis Peristalsis
    Peristalsis: The rippling motion of muscles in the digestive tract. In the stomach, this motion mixes food with gastric juices, turning it into a thin liquid....