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
Anxiety Treatment Guide Discontinue caffeinated beverages and avoid excess alcohol. Daily exercise and adequate sleep (with the use of medication if necessary) should be advised.
Cochlear Implant Cost Are you looking for Cochlear Implant Cost? A cochlear implant (CI) is a surgically implanted electronic device that provides a sense of sound to a person who is profoundly deaf or severely hard of hearing. The cochlear implant is often referred to as a bionic ear.
As of April 2009, approximately 188,000 people worldwide had received cochlear implants; in the United States, about 40,000 adults and over 30,000 children are recipients. The vast majority are in developed countries due to the high cost of the device, surgery and post-implantation therapy. A small but growing segment of recipients have bilateral implants (one implant in each cochlea).
Hypertension treatment food and nutrients When pressure exerted by blood on the walls of the arteries is greater than normal, blood pressure rises. Usually, blood pressure falls when at rest. It rises in response to strenuous physical activity, stress, or a perceived danger in which the sympathetic nervous system dominates, arteries constrict and more blood is sent to the brain increasing blood pressure. This heightened state of the sympathetic system does not seem to retreat in individuals with hypertension and damage to the heart, kidney, arteries, and other organs becomes inevitable.
Blood pressure is considered high at a reading of 140/90. There are no symptoms of the illness and it is recommended individuals over 40 be checked. Hypertension can be controlled by permanent diet and lifestyle changes; this includes reducing stress, maintaining proper weight (not more than 5 lb overweight), and eating foods containing compounds that reduce blood pressure such as celery, garlic, and fresh fruits and vegetables. Having a home monitor is helpful. Smoking, alcohol, refined sugar, food allergies, and high sodium foods can contribute to hypertension. Some people may need extra calcium to stabilize blood pressure. Some individuals are salt sensitive which cause a rise in their blood pressure. Daily exercises and various stress reduction techniques lower systolic and diastolic blood pressure.
Calculate bmi for teenage girls Calculate Your Body Mass Index
Body mass index (BMI) is a measure of body fat based on height and weight that applies to adult men and women.
Leprosy Symptoms, Causes and Treatment More than 10 million people are victims of leprosy, an infectious disorder also known as Hansenís disease. Although leprosy is more common in tropical regions, where up to 10 percent of some population groups may be affected, the disease also occurs in several northern countries, including the United States, where the disease is found in coastal states from California through Texas and Louisiana, and from Florida to New York. Ancient medical writings indicate that leprosy was known in China and India about 3,000 years ago but did not spread to the eastern Mediterranean until A.D. 500 or 600.
Lower Back Pain Treatment at Home What is the treatment for low back pain?
So, how is low back pain treated? Well, as described above, the treatment very much depends on the precise cause of the low back pain. Moreover, each patient must be individually evaluated and managed in the context of the underlying background health status and activity level.
Heart Attack Treatment Plans The treatment of a heart attack varies somewhat from case to case. The first rule, however, is to get the person to a hospital as soon as possible. Almost one-third of people who have a heart attack die before reaching the hospital. Of those who do get to a hospital, the vast majority will recover.
Complete cardiac arrest (meaning that the heart stops beating) can occur at any time during a heart attack. Even if cardiac arrest occurs, the patient has a good chance of survival if cardiopulmonary resuscitation (CPR) is started within four minutes of the arrest. CPR is a simple technique using mouth-to-mouth ventilation and chest compressions to pump oxygenated blood to the brain even though the victim's heart is not beating. Although CPR is a simple technique to learn, it cannot be learned from a book. CPR courses are taught by local chapters of the American Heart Association and American Red Cross. If everyone were trained in CPR, an estimated 100,000 lives would be saved each year in the United States alone.
What are the Symptoms of Herpes Herpes simplex virus (HSV) commonly causes infections of the skin and mucous membranes. Sometimes it can cause more serious infections in other parts of the body. HSV is one of the most difficult viruses to control and has plagued mankind for thousands of years.
Herpes simplex is part of a group of other herpes viruses that include human herpes virus 8 (the cause of Kaposi's sarcoma) and herpes zoster (the virus responsible for shingles and chicken pox). There are more than 80 types of herpes viruses. They differ in many ways, but the viruses share certain characteristics, notably the word "herpes," which is derived from a Greek word meaning "to creep." This refers to the unique characteristic pattern of all herpes viruses to "creep along" local nerve pathways to the nerve clusters at the end, where they remain in an inactive state for some indeterminate time.
Lyme Disease Symptoms and Treatment Lyme disease was first recognized in this country in 1975 along this rural road in the region of Lyme Connecticut. Physicians were facing an epidemic of what was being called juvenile rheumatoid arthritis. But it was through the pioneering work of Dr. Stear, who had been at Yale University, and Stira Malavista where it became very apparent that this was not a disease that was isolated to a joint, but rather involved many other systems in the body with the predilection for the skin, for the heart and the nervous system in addition to the joints. Although Lyme disease was relatively new to the United States, the neurologic manifestations were well recognized in Europe at the turn of the century and had been associated with the bite of the hard-shelled tick of the Ixodes family. But it wasnít until 1981 that Willie Burgdorfer collected Ixodes from an endemic area of Lyme disease in the United States and isolated the spirochete Borrelia burgdorferi, which bears his name. In 1983 Stira Malavista established the spirochete etiology of Lyme disease when they cultured the spirochete from the blood of patients and other tissues of patients with acute Lyme disease and showed the sera converted to spirochete protein.
Scurvy Causes, Symptoms, Diagnosis, Treatment and Prevention Scurvy is a disease caused by vitamin C deficiency. It is characterized by anemia (deficiency of red blood cells), spongy gums, a tendency to bleed and abnormal bone and tooth formation. The disease may be either acute (short-term) or chronic (long-term).
Vitamin C is essential for the formation and maintenance of connective tissue, bone tissue, and teeth. It is also essential for the healing of wounds and burns.
Vulvar Disease In addition to inspection, several other diagnostic aids are available. Papanicolaou (Pap) smears of the vulva, although generally not obtained, may be useful for ulcerated lesions. A saline-moistened tongue depressor or similar spatula is used to scrape the lesion for a specimen, which is then smeared on a slide for fixation.
The toluidine blue test is also helpful, particularly for selecting biopsy sites in cases of suspected vulvar dystrophy. The test is carried out by applying a 1% aqueous solution of toluidine blue, which is a nuclear stain, to the entire vulva, allowing 1 to 2 minutes for drying, then gently wiping the excess dye away with a cotton-tipped swab saturated with 1% acetic acid. Areas that retain the blue dye should be biopsied, but nonmalignant ulcers and fissures may stain blue.
Psychotherapy and Psychosomatic Approach fo Allergy There is little doubt that emotional factors have a profound effect upon an allergic condition. The reverse is also true, allergic disease affect the patient emotionally. A patient who suffers with a long-standing chronic condition like asthma, or a patient whose normal life is seriously interfered with during a good portion of the year because of hay fever, is bound to become nervous and upset. These patients develop emotional disturbances which in turn contribute to or aggravate their condition.
Ear Infection Treatment Adult and Antibiotics Are you looking for Ear Infection Treatment for Adult and what are Antibiotics for ear infection?
Ear infections occur when a cold, throat infection, or allergy attack causes fluid to become trapped in the middle ear. Mostly affecting children, symptoms include earaches and thick, yellow fluid coming from the ears. A small tube connects your ear to your throat. These two tubes are called eustachian tubes (say "yoo-STAY-shee-un"). A cold can cause this tube to swell. When the tube swells enough to become blocked, it can trap fluid inside your ear. This makes it a perfect place for germs to grow and cause an infection.