Health Care Professionals
Written by Doc Team Wednesday, 28 July 2010 18:51
Professional manpower in the field of health care includes chiropractors, dentists, dental hygienists, licensed therapists, physicians, podiatrists, registered nurses, and a host of others. In the United States counts of these professionals include only those licensed in the state where they practice, with licensure usually requiring the completiom of an appropriate degree or certificate program for that profession.
In international counts prepared by the World Health Organization only those professionals active in their profession are counted. Professionals may be classified according to specialy, place of practice, or other criteria.
Physicians are at the top of the manpower pyramid, and for most purposes they lead the health team in the delivery of medical care. A physician is either a licensed doctor of medicine (M.D) or a doctor of osteopathy (D.O). A physician's specialty is any specific branch of medicine that a physician may concentrate in.
Basic Knowledge About Renal Failure
Written by Doc Team Friday, 09 July 2010 20:39
Renal Failure is the inability of the kidneys to perform their normal excretory and regulatory function. The hallmark of the condition is uremia, which may be defined as the retention of urea and other metabolic wastes and the toxis efects produced thereby. These effects include nausea, vomiting, headache, dizziness, dimness of vision, coma, and convulsions.
There are a multitude of underlying causes of renal failure, including hemorrhage, poisoning, enlarge prostate, kidney stones, and inflammation of the glomeruli. If these are correctable, the outlook is good to excellent. The removal of kidney stones, for example, is clearly the answer to renal failure of this origin. When the cause is not correctable or when the limits of effectiveness of conventional therapy have been reached, long-term dialysis or transplantation must be considered.
The Adrenal Glands
Written by Doc Team Friday, 02 July 2010 19:38
The adrenal glands are small flattened bodies lying on the outer, upper extremity of each kidney. They consist of two distinct parts, the cortex and the medulla, each producing its own characteristic secretion.
The hormones produced by the medulla are epinephrine and norepinephrine. Stimuli causing the release of these substances include pain, cold, emotions, stress, hemorrhage, lack of oxygen, and low blood sugar. When secreted into the bloodstream, epinephrine causes marked changes in the circulatory system. The rate of heartbeat is quickened, blood pressure is increased, and sugar is released into the bloodstream from reserves in the liver.
The pupils dilate. Blood vessels of the skin, mucous membranes, and kidneys constrict, but other (coronary system, skeletal muscle ,and lungs) dilate. Digestion is inhibited. There is an increased flow of blood to the muscles. Muscle fatigue is delayed. Epinephrine has been termed the emergency hormone, since it brings into play the body processes on which self preservation depends. The effect of norepinephrine is limited to the constriction of blood vessels.
The Urinary System - Structural Features
Written by Doc Team Tuesday, 15 June 2010 10:08
The urinary system is composed the kidneys, ureters, bladder, and urethra. The kidney are bean shaped organs, weighing about 200 g ,embedded in the back abdominal wall on either side of the vertebral column; through the hillus (or opening in the concave side of each organ) pass the renal artery and vein, lymphatic vessels, nerves, and ureter.
Cut longitudinally the kidney discloses two regions (an outer cortex and an inner medulla) and a cavity, or renal pelvis, from which the ureter is an outlet. Leading off the pelvis are a number of cup shaped recesses (calices), each calix enclosing the apex, or papilla, of a triangulas structure called the pyramid, each pyramid is composed of collecting tubules that open at the papilla.
Page 1 of 6
«StartPrev123456NextEnd»Popular On Medic Article
 Mammogram Screening Program and Its IssuesHealth problem like breast cancer is one of serious problems that attack many women all over the world. The most discussed news about this cancer regarding the use of mammogram screening programs towa [ ... ] |
