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 ...

Impact of Heart Diseas Stages of the condition There are many types of heart disease. About 25% of all Americans have one or more types of cardiovascular disease. The major types of heart disease are atherosclerosis, coronary, rheumatic, congenital, myocarditis, angina and arrhythmia. Heart...

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 ...

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...

EXPLORATION AND DISSECTION OF A MAMMALIAN HEART Abstract: In this experiment, we obtained a fresh heart and dissected it to examine and observe the different parts of the heart, as well as studying how they function and work together. Problem: How can we study the heart through dissectio...

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...

Cholesterol is a waxy, fatty substance that circulates through the bloodstream as part of the cell membrane. Unable to dissolve in blood, it is transported by lipoproteins to and from the liver through the circulatory system. Found throughout all human bodies, it is an integral part of life, ...

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...

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...

Marfan syndrome is a genetic disorder in which effects the heart and blood vessels; spine, chest, and joints; and the eyes. The heart abnormalities associated with the disorder are the most life threatening. The major heart abnormality is the weakening of the root of the aorta. The type of ...

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...

Chapter 22 TOBACCO Lesson 1: Problems For The Tobacco User Objective: To learn the dangers of smoking. Tobacco use is a major cause of illness and death. Being in the company of smokers is risky behavior. TERMS Nicotine – Stimulant – Tar – Carcinogens – Ca...