The Heart and the Circulatory System Introduction Imagine that you are living in the year 1535, and that you don't feel well. You have had some problems with fatigue, feeling a little more tired than usual when you walked to the market and back. You tell this to your physician, and he sends y...

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 ...

Aim: To investigate how exercise affects heart rate. Introduction: The heart is rate is how many times the heartbeats in a certain period, normally a minute; this gives the unit bpm (beats per minute). During rest, the heart beats about 70 times a minute in the adult male, while pumping about 5 li...

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...

Blood is a fluid substance that circulates in the arteries and veins of the body. Blood is bright red or scarlet when it has been oxygenated in the lungs and passes into the arteries; it becomes bluish red when it has given up its oxygen to nourish the tissues of the body and is returning to the ...

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...

Platelets are flattened discs that are round from above and spindle shaped section. Megakaryocytes are very active cells that continually make proteins, enzymes, and membranes. But instead of getting bigger. They just shed small membrane-enclosed packets of cytoplasm into circulation. This is where ...

ENVIRONMENTAL SYSTEMS – LABREPORT ON CARDIOVASCULAR FITNESS. Introduction: Through this exercise we will gain a bigger understanding of what it means to make a scientific experiment, and we will become better in one of the essential purposes of Environmental Systems: Using our own resea...

The Cardiovascular System-Blood Pressure and The ECG Blood pressure is the force of blood distending the arterial walls. Blood pressure is measured in the Brachial artery using a sphygmomanometer, the average resting bp in a normal person is 120/80. The higher number is the systolic blood pres...

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...

Today people strive to great lengths to keep their body in a good, healthy condition. Every system in the body, let it be digestion, circulatory (of blood), immune, respiratory, cellular respiratory or kidneys and excretion are all vital. Each have their separate roles, but not one works separately....

Late one afternoon, a lady was driving home in the rush hour traffic. The last thing she needed was a pounding headache. While she was stopped, she dug in her purse for some aspirin to relieve her headache. She chugged it down with the Pepsi sitting by the seat. Her only worry was to relieve h...

The two organisms discussed I this report are humans and Frogs. The Taxonomy of an organism includes kingdom, phylum, class, order, family, genus, and species. Humans are classified by the kingdom animalia, phylum chordate, class mammalia, order primates, family hominidae, genus homo, and species...

Sickle Cell Anemia Sickle Cell Anemia is the most common blood inherited disease in the United States, affecting about 72,000 Americans each year, and it has no cure. It commonly affects Hispanics and African Americans rather than Caucasians. It is classified as a disease in which the red ...

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...

CIGARETTE SMOKING AND THE BODY Tobacco is consumed worldwide everyday by millions of people. Many people cannot prevent themselves from smoking because tobacco contains a drug called nicotine that makes them feel as if they need it in order to function normally. Nicotine is a substance found in t...

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...

CIGARETTE SMOKING AND THE BODY Tobacco is consumed worldwide everyday by millions of people. Many people cannot prevent themselves from smoking because tobacco contains a drug called nicotine that makes them feel as if they need it in order to function normally. Nicotine is a substance found in t...

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...