.... forced into the left ventricle and then by ventricular contraction into the aorta. Branching the aorta divides into a number of main branches, which in turn divide into smaller ones until the entire body is supplied by series of blood vessels. Portal circulation in addition to the pulmonary and systematic circulations described above, a subsidery to the venous system exists, known as portal circulation. A certain amount of blood from the intestine is collected into the portal vein and carried to the liver. Coronary circulation is the means by which the heart tissues themselves are supplied with nutrients and oxygen and are freed of wastes. Just beyond the semiluna valve ....

.... professionals are publicly speaking about their struggle with addiction. This has heightened the general public’s awareness of a problem that does exist within the field. This realization has led the American Medical Association to take active and preventive measures toward drug use as well as state medical boards (Mansky, 1996). The American with Disabilities Act protects the drug impaired health professional through recovery and back into his/her job. The problem concerning addicted health professionals seems to affect the public as most of us seek healthcare at one time or another in our lifetimes. First, the definition of impairment must be addressed. Accordin ....

.... levels, and damages the lungs. Most of these claims, however, have been unreplicated in humans or have been contradicted by other work. This section will address each of these reported negative side-effects. Various studies have claimed that cannabis destroys brain cells. However, several other studies found no structural or neurochemical atrophy in the brain at all. Furthermore, it should be noted that Heath's work was sharply criticized for avoiding safeguards of bias and reporting "changes" that occur normally in the mammalian brain. Wu et al. found a correlation between cannabis use and low sperm counts in human males. This is misleading because a decrease in ....

.... of tumor material. Among the major clinical problems of ovarian cancer, malignant progression, rapid emergence of drug resistance, and associated cross-resistance remain unresolved. Ovarian cancer has a high frequency of metastasis yet generally remains localized within the peritoneal cavity. Tumor development has been associated with aberrant, dysfunctional expression and/or mutation of various genes. This can include oncogene overexpression, amplification or mutation, aberrant tumor suppressor expression or mutation. Also, subversion of host antitumor immune responses may play a role in the pathogenesis of cancer (Sharp, 77). Ovarian clear cell adenocarcin ....

.... individuals to live relatively normal, fulfilling lives, and may prevent more serious problems. The most serious problems associated with the Marfan syndrome involve the cardiovascular system. The two leaflets of the mitral valve may billow backwards when the heart contracts (mitral valve prolapse). This can lead to leakage of the mitral valve or irregular heart rhythm. In addition, the aorta, the main artery carrying blood away from the heart, is generally wider and more fragile in patients with the Marfan syndrome. This widening is progressive and can cause leakage of the aortic valve or tears (dissection) in the aorta wall. When the aorta becomes greatly widene ....

.... is good. In fact, everyone needs stress in his or her lives, because without it, life would be dull and unexciting. Stress adds flavor, challenge and opportunity to life. Stress can pump you up, give you energy, or supply that zest for living. Stress is an unavoidable part of life. The challenges caused by stress help to develop new skills and behavior patterns. The problems occur; however, when stress becomes excessive. It can become destructive and can turn into distress. Too much stress on your mind and body can make you feel miserable, worried, sad and ill. Contrary to popular belief, stress is not the pressure from the outside, such as divorce, death, burned ....

.... pattern that continues into adulthood and will result in a full-fledged dissociative disorder. Dissociative disorders main feature is a disturbance or alteration in the normally integrative functions of identity, memory, or consciousness. If the disturbance occurs in memory, Dissociative Amnesia of Fugue results; important personal events cannot be recalled. Dissociative Amnesia with loss of memory may result from wartime trauma, a severe accident or rape. Dissociative Fugue is indicated by not only loss of memory, but also travel to a now location and the assumption of a new identity. Posttraumatic Stress Disorder (PTSD), although not officially a dissociative ....

.... the effects of a rising BAL can be very useful in controlling drinking. Below are the consequences of various Blood Alcohol Levels,from a book by William R. Miller and Ricardo F. Munoz called, "How to Control your Drinkling: A Practical Guide to Responsible Drinking (1982): .02 MELLOW FEELING. SLIGHT BODY WARMTH. LESS INHIBITED. .05 NOTICEABLE RELAXATION. LESS ALERT. LESS SELF-FOCUSED. COORDINATION IMPAIRMENT BEGINS. .08 DRUNK DRIVING LIMIT. DEFINITE IMPAIRMENT IN COORDINATION AND JUDGMENT. .10 NOISY. POSSIBLE EMBARRASSING BEHAVIOR. MOOD SWINGS. REDUCTION IN REACTION TIME. .15 IMPAIRED BALANCE AND MOVEMENT. CLEARLY DRUNK. .30 MANY PA ....