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
Backache Symptoms, Treatment and Prevention A backache is generally a gripping pain near the inward curve of the back above the base of the spine. It is one of the most common physical ailments, affecting about 80 percent of the population at some time in their lives.
Pain results from a variety of causes. Strains are especially under exercised back muscles perform beyond their normal capacity. The muscles will then contract or go into spasm and become a tight mass of tissue. Meanwhile, the body transmits a sharp pain signal as nearby muscles tighten in an effort to protect strained muscles and prevent further damage. Strain of back muscles can be due to participation in a sport, a sudden jerking motion (such as a car braking), or reflex actions like sneezing.
Miranda Kerr Diet Plan and Exercise Supermodel and new mum Miranda Kerr has revealed how she maintains her slender figure and glowing vitality.
Writing on her KoraOrganics blog, the Victoria's Secret model and mother of two-month old Flynn, attributes her perfect figure to the Blood Type diet and a healthy dose of supplements to maximise her daily nutrition intake.
Nephritis Symptoms and Treatment Nephritis is a disorder characterized by inflammation of the glomeruli of the kidneys. The glomeruli are tiny coiled blood vessels through which the liquid portion of the blood is filtered as it enters the outer structure of the kidneys. There are about one million of these tiny blood vessels in each kidney. The fluid from the blood passes from them into many little ducts called tubules. Water and various substances are secreted into and absorbed from the liquid in the tubules. The final product of this passage of filtered fluid from the glomeruli through the tubules to the uterus and then to the bladder is urine. It contains the excess fluid and waste products produced by the body during normal functioning.
Heterochromia Iridium Causes In anatomy, heterochromia refers to a difference in coloration, usually of the iris but also of hair or skin. Heterochromia is a result of the relative excess or lack of melanin (a pigment). It may be inherited, or caused by genetic mosaicism, disease, or injury.
Heterochromia of the eye (heterochromia iridis or heterochromia iridum; the common wrong form "heterochromia iridium" is not correct Latin) is of two kinds. In complete heterochromia, one iris is a different color from the other. In partial heterochromia or sectoral heterochromia, part of one iris is a different color from its remainder.
Best Weight Loss Program Are you looking for Best Weight Loss Program? All diets must do one of two things -- reduce calorie intake and/or increase calorie expenditure through movement. Even though it confounds many of us, experts say weight loss really does come down to a simple formula of calories in versus calories out. Most popular diet plans work by dramatically decreasing calorie intake, and some increase weight loss even further by prescribing a set amount of daily physical activity.
New Treatments for Epididymitis The epididymis is located along the posterior border of the testicle with the head. Epididymitis is an inflammation of the epididymis that causes pain and swelling of the epididymis and often of the adjacent testicle. It may be accompanied by abdominal pain and fever. It is usually seen in young men but may occur at any age.
Facing Cancer While heart diseases mortality rates have declined steadily over the past 50 years, cancer mortality rates have increased consistently in the same period. Based on current rates, about 83 million-or one in three of us now living-will eventually develop cancer. Many factors have contributed to the rise in cancer mortality, but the increase in the incidence of the lung cancer is probably the most important reason. Despite these gloomy predictions, recent advancements in the diagnosis and treatment of many forms of cancer have reduced much of the fear and mystery that once surrounded this disease.
Best Eye Surgery Hospitals Are you looking for best eye surgery hospitals?
Eye surgery, also known as orogolomistician surgery or ocular surgery, is surgery performed on the eye or its adnexa, typically by an ophthalmologist.
How to Lose Weight Fast for Teenage Girl without exercise They told him of a party or some event a few weeks in advance and need to lose a few pounds?
Or maybe going to go on holiday and want to look spectacular in the photos.
Fortunately there are some tricks to lose those few extra pounds in no time.
Is smoking harmful during pregnancy Your smoking can kill your baby. And, if the baby does not die, your smoking can cause such significant brain and body damage that your child will never be able to function as a normal, healthy person.
The earliest effect of the smoking related to pregnancy is infertility. People who smoke are less likely to get pregnant that people who do not smoke. If you do get pregnant, there is a do related effect on miscarriage. The more cigarettes you smoke, the more likely you are to miscarry).
Trigeminal Neuralgia Treatment Guidelines Are you looking for trigeminal neuralgia treatment guidelines? Trigeminal neuralgia (TN), tic douloureux (also known as prosopalgia, the Suicide Disease or Fothergill's disease) is a neuropathic disorder characterized by episodes of intense pain in the face, originating from the trigeminal nerve. It has been described as among the most painful conditions known. It is estimated that 1 in 15,000 people suffer from TN, although the actual figure may be significantly higher due to frequent misdiagnosis. In a majority of cases, TN symptoms begin appearing after the age of 50, although there have been cases with patients being as young as three years of age. It is more common in females than males.
Menstrual Disorders (Amenorrhea) Among the health concerns of women that specifically belong to gynecology are menstrual disorders. Normally, the first menstrual period (menarche) occurs about age 12 or 13, or sometimes earlier or later. Periods are generally irregular for the first year or two, and then they tend to recur at intervals of 24 to 32 days. Each period begins about two weeks after ovulation, or the release of an egg cell (ovum) from the ovary—unless, of course, the ovum happens to be fertilized in the interval and pregnancy interrupts the whole process.
The menstrual flow, which lasts from three to seven days, is composed mainly of serum, mucus, and dead cells shed from the lining (endometrium) of the uterus. The loss of blood is minimal, usually from two to four ounces. The volume of flow, as well as the time schedule, tends to be fairly regular for most women. When one’s menstrual pattern varies noticeably from the expected pattern, and in the absence of pregnancy, it may be assign of a physical or emotional disorder.