The blood away which carry the bright red oxygenated blood away from the heart are called arteries. The large arteries, which receive the blood directly from form the heart, branch repeatedly until every part of the body is served by one or more of them.
The blood returns from all parts of the body to the heart through veins. There are many more veins than arteries throughout the body. The veins gradually unite to form larger veins as they approach the heart.
When the blood is sent out over the body through the arteries it passes into the capillaries in which the arteries end. The capillaries are tiny hairlike blood vessels forming a network throughout the body. The tissue is so well supplied with capillaries that even a pinprick is likely yo break some of them and result in the appearance of a few drops of blood.
When an artery, vein, or capillary is broken or cut, blood flows the broken vessels. Usually the blood flow the broken blood vessels is stopped by the formation of a clot in the end of the broken vessels. Bleeding from a large artery comes in serious. The blood from a served artery is extremely serious. The blood from a served artery comes in spurts. There is a smooth flow of blood from veins.
The pumping action of the heart ceases only with death. Ay and night, year after year, it continues to work in pumping the blood throughout the body. It can rest only by pumping more slowly or less powerfully.
The heart is a hollow, pear-shaped muscular organ located just slightly to the left of the midline of the body in the chest cavity. It can be located easily by the sound of the heartbeat or the feeling of its contraction through the skin and muscle that lie over it.
At birth the heart beats about 130 times a minute, at six years it beats 100 times a minute, at ten years about 90, and at fifteen years about 85. The approximate normal heart rate among adults ranges from 65 to 80 betas per minute. During a lifetime the heart beats 2,500,000,000 times and pumps a total of nearly 15,000,000 gallons.
The impulse which causes the heart to contract develops in some nerve tissue which is called the peacemaker of the heart. An attempt to measure this impulse indicates that its energy is the equivalent of one-thousandth of a volt.
The blood from all parts of the body empties into the heart through large veins. Then it is sent through the lungs, where it acquires a new supply of oxygen. The blood the returns to the heart from the lungs. When the heart muscle contracts, the blood is forced out the heart, then goes by away of the large arteries and capillaries to the farthest extremes of the body.
The heart moves a total of five hundred gallons of blood a day. Since there are about six quarts of blood in the whole body, the heart moves the same fluid, slightly modified chemically as it travels about, over and over again
Osteoporosis Treatment Guidelines 2011 UK Osteoporosis Treatment
The goal of treatment of osteoporosis is the prevention of bone fractures by reducing bone loss or, preferably, by increasing bone density and strength.
Fibromyalgia Treatment Drugs and Vitamins Are you looking for fibromyalgia treatment drugs and vitamins? Fibromyalgia is a disorder characterized by widespread musculoskeletal pain accompanied by fatigue, sleep, memory and mood issues. Researchers believe that fibromyalgia amplifies painful sensations by affecting the way your brain processes pain signals.
Symptoms sometimes begin after a physical trauma, surgery, infection or significant psychological stress. In other cases, symptoms gradually accumulate over time with no single triggering event.
Breast Cancer Treatment and Therapy Guidelines What about the follow-up after our primary and adjuvant treatment for breast cancer? We know from many good signs that most of the recurrences are found by patients, second most by physicians and almost never by routine tests. Therefore, the official recommendations for follow-up of asymptomatic individuals after primary therapy is that they have history and physicals about every four to six months and that they have annual mammographies. There are no films, scans, tumor markers that are indicated in the follow-up of asymptomatic individuals. So, we usually suggest a history and physical every three to six months and an annual mammography. This is something that is continually under review. It might change, but today, all of the studies that have been done have never been able to show survival benefit for intensive screening with radiographic and blood testing as opposed to just clinical follow-up of these patients.
Metastatic breast cancer. If breast cancer is found to have spread at the time of diagnosis or recurs later after local therapy, we have a situation which cannot be realistically considered to be a curable disease at this point. I think that is important. It is equally important however to recognize that the survival ratio with metastatic breast cancer is very, very variable. If you have metastatic lung cancer or inoperable pancreas cancer, most of these patients are dead in year. Certainly within 18 months. There is almost no survival at two years with a disease like that. Breast cancer is all over the board. The median survival from onset of metastases is probably on the order of two to three years but all of us have patients who have lived 10 years or more in very good physical condition after the development of metastatic disease. So, again looking at the clinical parameters of what the disease-free interval is, what sites are involved, whether the hormone receptors are positive, can help you project somewhat what is going to happen but is a situation with an extremely variable prognosis.
What is oxycodone and the side effects What is oxycodone? and what are oxycodone side effects? Oxycodone (OxyContin and other brand names) is an opioid analgesic medication synthesized from opium-derived thebaine. It was developed in 1916 in Germany, as one of several new semi-synthetic opioids in an attempt to improve on the existing opioids: morphine, diacetylmorphine (heroin), and codeine.
Flexeril dosage and usage Flexeril (cyclobenzaprine) is a muscle relaxant. It works by blocking nerve impulses (or pain sensations) that are sent to your brain. Flexeril is used together with rest and physical therapy to treat skeletal muscle conditions such as pain or injury. Flexeril may also be used for other purposes not listed in this medication guide.
No Carb Diet Menu Plan Are you looking for No Carb Diet Menu? Low-carbohydrate diets or low-carb diets are dietary programs that restrict carbohydrate consumption usually for weight control or for the treatment of obesity. Foods high in digestible carbohydrates (e.g. bread, pasta) are limited or replaced with foods containing a higher percentage of proteins and fats (e.g. meat, poultry, fish, shellfish, eggs, cheese, nuts, seeds and peanuts) and other foods low in carbohydrates (e.g. most salad vegetables), although other vegetables and fruits (especially berries) are often allowed. The amount of carbohydrate allowed varies with different low-carbohydrate diets.
Schistosomiasis Symptoms and Treatment A worm of a different sort—the trematode, a flatworm of the class Trematoda, which includes the flukes—is responsible for schistosomiasis. This disease occurs in various forms if Africa, Asia, South America, and the Caribbean, including Puerto Rico. About 200 million people infected with schistosomiasis, also called bilharziasis.
Life Cycle of the Fluke Parasite
The process of infection by one kind of fluke involves free swimming larvae that penetrate the skin of a human who has entered waters containing the organism. The larvae follow the human bloodstream to the liver, where they develop into adult worms. The adult worms then move into the intestine or urinary bladder and are excreted with the urine or feces of the host. If they find their way to fresh water, the eggs hatch and the released organisms find their way to the body of a snail. Inside the snail they multiply into thousands of new larvae over a period of one or two months, after which they return to the water and invade the skin of another human. In this manner the fluke worm continues its life cycle, infecting more humans who venture into the contaminated waters.
Miscarriage Types, Symptoms and Treatment A miscarriage (in medical terms, a spontaneous abortion) is the ending of pregnancy due to the premature delivery of the fetus before the beginning of the twentieth week of pregnancy. At that point, the fetus is not developed enough to survive outside the uterus on its own. (After the twentieth week of pregnancy, a spontaneous abortion is considered a premature delivery or, if the fetus is dead at delivery, a still birth. A pregnancy that is ended artificially is commonly known as an abortion, although the medical term is termination of pregnancy.) Most miscarriages occur with the first 14 weeks of pregnancy.
It is impossible to know the number of miscarriages that occur during the first month of pregnancy before a women realizes that she is pregnant the only indication is slightly late menstrual period with a heavier than normal flow. However, about 12 percent of known pregnancies end in miscarriage.
Open heart surgery Are you looking for about open heart surgery? Open heart surgery is a surgery in which the patient's heart is opened and surgery is performed on the internal structures of the heart. It was soon discovered by Dr. Wilfred G. Bigelow of the University of Toronto that the repair of intracardiac pathologies was better done with a bloodless and motionless environment, which means that the heart should be stopped and drained of blood. The first successful intracardiac correction of a congenital heart defect using hypothermia was performed by Dr. C. Walton Lillehei and Dr. F. John Lewis at the University of Minnesota on September 2, 1952. The following year, Soviet surgeon Aleksandr Aleksandrovich Vishnevskiy conducted the first cardiac surgery under local anesthesia.
Body Odor Causes The primary function of the eccrine sweat glands is to assist in the maintenance of body temperature in response to heat exposure or exercise. Hyperhidrosis may be defined as sweating beyond what is necessary to maintain thermal regulation. It may be primary (idiopathic, essential) or secondary to a number of diseases and prescribed drugs. Hyperhidrosis can be localized or generalized. Regardless of the type or cause of the hyperhidrosis, it is frequently socially embarrassing and occupationally disabling.
Natural Head Lice Treatment Are you looking for natural head lice treatment? here is some good stuff about natural head lice treatment. Head lice are tiny wingless insects that are grey-brown in colour. They are the size of a pinhead when they hatch and 3mm long (the size of a sesame seed) when fully grown. Head lice cannot fly, jump or swim. They are spread by head-to-head contact and climb from the hair of an infected person to the hair of someone else.