.... completely closes during contraction of the ventricle. In its passage through the lungs, the blood is oxygenated, that is, then it is brought back to the heart by the four pulmonary veins, which enter the left auricle. When this chamber contracts, blood is forced into the left ventricle and then by ventricular contraction into the aorta. The bicuspid, or mitral, valve prevents the blood from flowing back into the auricle, and the semilunar valves at the beginning of the aorta stop it from flowing back into the ventricle. Similar valves are present in the pulmonary artery. The aorta div .....

.... Family Association (NFCA). NFCA conducted a survey of membership which provided valuable insight as to who are and the significant contributions they make. 81% of are female 79% are married 70% are between age 40-60 54% care for spouses 21% care for parents 69% of care recipients live with their caregivers 55% of caregivers help recipient with daily living activities. Family Caregivers. Available: http://www.agenet.com/Who_Are_They.html. A caregiver is more than just the person’s nurse, they are also that person’s advocate. Throughout the impaired person’s illnes .....

.... particular cause of dyslexia. The causes are usually a combination of both biological and environmental influences. The left part of the brain controls the production and comprehension of language and it also deals with orderly and precise thought. The right part of the brain controls visual perception, emotion, instincts, and non-verbal responses. Both the right and left part of the brain must work together to create speech, writing, and mathematics. Some scientists say that the cause of dyslexia don’t have anything to do with different brain chemistry, or the genetic make-up of th .....

.... dying. These statistics revel an alarming social problem that is reaching epic proportions. Although the topic of eating disorders has gained a larger audience within the last decade, the number of cases of eating disorders continues to rise at a resounding rate. Today many scientists are looking into possible causes for the onset of an eating disorder. The most prevalent and influencing factor is the media and society's view. They act as a controlling presence for susceptible individuals. “ The socioculture pressure on today's adolescent and young women to be thin and attractiv .....

.... 1970's, Henry Kissinger wrote a top secret document -- a National Security Memorandum ("NSM 200") -- in which he indicated that "depopulation should be the highest priority of US foreign policy towards the Third World." This Memorandum which can be obtained from the US National Archives, which was only declassified very quietly in 1990, was adopted by the National Security Council as official US foreign policy towards the Third World. Now, this is a classic example of the "secret government" in action, because of none of this was known to the Congress, and certainly, it was not known to the .....

.... in nature and is often associated with arousal of the autonomic nervous system. Trait anxiety can be thought of as a world view that in individual uses when coping with situations in his or her environment (Speilberger, 1996). Trait anxiety influences performances in that individuals with high trait anxiety will attend more information related to state anxiety (hardy et al., 1996). Now one of the earliest models that attempted to explain the relationship between arousal and performance was the inverted-U hypothesis. This performance stated that as arousal increased, performance wou .....

.... Esophagus is your tube that your food goes down into the stomach. If we didn't have an esophagus we probley wouldn't be alive. Your stomach is your main organ because it is the thing that makes your food into smaller units and you would die if you didn't have a stomach. Enzyme is a kind of protein that speeds up chemical reactions in the body. If we didn't have enzyme everybody would be walking 1 mile an hour and you wouldn't have any energy. The Liver is an organ that stores food substances and produces bile. Digestion is the process that breaks down food so it can be used in the body. Sali .....

.... else’s life. What happens if a cure is found for the disease? The sick person died for no good reason. What if the patient gets better? If they are killed then they have no chance to get better. According to the American Medical Associates doctrine that was adopted, killing someone is wrong but letting someone die is allowed. The American Medical Association’s doctrine should sanction active euthanasia so it can be used in certain situations that require it. There are three reasons why active euthanasia should be favored over passive euthanasia. Passive euthanasia could ma .....

.... to patients with preexisting psychiatric illness other than depression or mania (Goodwin, Guze. 1989, p.7 ). affects approximately one percent or three million persons in the United States, afflicting both males and females. Bipolar disorder involves episodes of mania and depression. The manic episodes are characterized by elevated or irritable mood, increased energy, decreased need for sleep, poor judgment and insight and often reckless or irresponsible behavior (Hollandsworth, Jr. 1990 ). These episodes may alternate with profound depressions characterized by a pervasive sadness, almost .....

.... of a pregnancy can vary widely. Whether caused by rape, incest, or age and ignorance, an unwanted pregnancy remains an unwanted pregnancy. Abortion causes a woman to choose between her life or the potential child's. This is always a hard decision to make. It involves a lot of thought, and may cause guilt or regret after the procedure; but dismissing that right to choose would not benefit anyone. Pregnancy can have horrible affects on adolescents causing medical problems, nervous breakdowns and emotional distress. It is said that pregnancies in adolescence involve 4-5 times more risk tha .....