Cardiovascular diseases rank as America's number 1 killer. They claim the lives of 42.7 percent of the more than 2 million Americans who die each year. Cancer follows, killing 23.8 percent. All other causes of death account for 33.5 percent. Medical research continually seeks to reduce di...

What is high blood pressure? High blood pressure means that your heart is working harder than normal to force blood into the arteries and through the circulatory system. For an adult a blood pressure reading greater that 140 over 90 is considered as high. Normally, the pumping of the heart creates ...

Heart attacks are the leading cause of death in the United States. Everyday approximately 1,500 people die from heart attacks. Thousands more suffer crippling effects of some form, and remain disabled for the Rest of their lives. A simple definition of a heart attack is a sudden Failure of the hear...

Heart Attacks A heart attack is also known as Myocardial Infarction (M.I.). A heart attack occurs when the blood supply to a portion of the heart muscle is severely reduced or stopped. This happens when one of the arteries that supply blood to the heart muscle is blocked by an obstruction. This b...

Heart disease is a common disease in people. Its a disease that affects the heart and the cardiovascular system. There are many types of Heart disease. Most often when people think of any kind of heart disease they usually think of the Coronary Artery Disease. That is the narrowing of arteries that ...

One out of the four of you in this classroom will have it. It affects 50 million Americans and nearly half are women. There are no symptoms to this disease. Many people have it for years without knowing it. This is why high blood pressure is also called the "silent killer." Uncontrol...

Unit 2 Biology- FUNCTIONING ORGANISMS SAC- 'Essay on transport systems' "Transport systems play an essential role in the survival of flowering plants and mammals" Transport systems play an essential role in the survival of flowering plants and mammals. These organisms re...

Smoking is bad for your body and your overall health. There are many side affects that can hurt and even kill your body. It also can harm your lungs and make it hard for you to breathe. When you look at the statistics I don't understand why people do smoke. Cigarette smoking is the most...

Circulatory system, cardiac location and structures, the heart is the driving force of the circulatory system, contracting about 70 times/minute to pump an adequate volume of blood with sufficient pressure to perfuse all body organs. The muscular organ weights from 300 to 400g, it's located wit...

What is coagulation? The Circulatory system is made up of many blood vessels and is a self sealing system. When a blood vessel in injured, platelets begin to stick to each other and to the sides of the injured tissue to form a plug, or a clot, which becomes covered with strands of thread like fibr...

Know the Facts About Hypertension Hypertension is the increase of blood pressure above normal levels over an extended period of time. Anyone with a regular blood pressure reading greater than or equal to 140/90 mmHg is considered to have hypertension. Those with a blood pressure of 120/80 mmH...

One of the major health problems that the American society and the whole world experience is the prevalence of hypertension or high blood pressure, caused illnesses or deaths in many people today. A special report made by the website Lifeclinic.com stated that almost 50 million Americans have hyper...

In the circulatory system of the human body, there are about 5-6 quarts of blood in the average adult. This blood is considered a tissue because it has many cells. The blood goes to all the parts of the body taking oxygen from the lungs and carbon dioxide to the lungs, while also transporting metabo...

HYPERTENSION Hypertension is a common disorder characterized by a sustained elevation of systolic arterial pressure (top number) of 140 mm Hg or higher, or a diastolic arterial pressure (bottom number) of 90 mm Hg or greater, or both. Hypertension is divided into two categories: essential (o...

Stroke When a family member has a stroke, the family could also be highly affected. The person may have slurred speech, facial weakness, loss of bladder control, difficulty in breathing and swallowing, and paralysis or weakness, particularly on one side of the body. A stroke is also referre...

I'd like to take you back to July 26, 2003. It was an average morning for me; I was lifting weights in a class at the gym when I was suddenly confronted with a blinding, uncontrollable migraine that came on without warning. The pain was unbearable and nauseating, so I got out of class to lay on a c...

1. Homeostasis is defined as the body's internal environment being within a certain physiological state. There are seven major factors that need to be homeostaticly maintained. They are: concentration of oxygen and carbon dioxide, nutrition of cells, concentration of wastes, concentration of s...

Earth Worm Disection Parts Function Digestive System - Prostomium - a small fleshy lobe that extends over the mouth, used to help dig through the soil - Mouth - the entrance for food into the digestive system, located under the prostomium - Pharynx - A tube at the beginning of the digestiv...

Stress comes from many different things and is the cause of many problems in a person's life. Stress management can be complicated and confusing because there are different types of stress. There are three main types of stress, acute stress, episodic acute stress, and chronic stress. Each has t...

While viewing an episode of forensic files on Court TV February 2004, I was inspired to do my research paper on Hemolytic Uremic Syndrome (HUS). As I watched, an eleven-year-old boy was suffering from a severe outbreak of HUS. I watched in disbelief as this child's body shut down one system a...

Alcohol is a mood altering depressant drug. It can affect almost every part of a person's body. The affect alcohol has on a person depends on their sex, weight, how fast they metabolize alcohol, situation, mood, and the presence of food in the stomach. Alcohol decreases a person's inhi...

Meningococcal Meningococcal disease, a form of meningitis, is becoming more common and widespread and just as deadly around the world everyday. There are numerous different types of Meningococcal disease, which include A, B, C, Y and W135. A and B are the cases mainly found throughout the worl...

The Phospholipid Bilayer Our cell membrane is made up of a dispersion of different proteins onto a 2 dimensional fluid of lipids, compounded mainly of phospholipids, a class of membrane lipids that are amphipathic in their properties, meaning that they are both hydrophilic and hydrophobic (Ratto, ...