The heart consists of a collection of individual cells that work together to continuously pump blood through the circulatory system. Some heart cells form connective tissues, others grow into valves and the remaining, known as myocytes, give the...
Cardiac or heart muscle is described by the University of Western Cape as a unique tissue that is only found in the walls of the heart. This muscle has several specialized features that differentiate it from other muscles within the body. The...
The heart is responsible for the circulation of nutrient-rich blood and the removal of wastes from the cells. It works in conjunction with the lungs to carry oxygen to tissues throughout the body. The heart beats continually and does not depend on...
The human body is made up of several main systems, one of which is the muscular system. There are hundreds of muscles within the body, including more than 400 skeletal muscles alone. They are responsible for more than 40 percent of a person's...
Cells within the body communicate with each other to allow proper tissue and organ functioning. One method of communication is through cellular junctions, structures between two neighboring cells that allow signal transmission between the cells....
The cardiovascular system consists of the heart, which works like a pump, and more than 60,000 miles of blood vessels. Its main purpose is to transport oxygen and nutrients to the body and remove metabolic waste. Approximately the size of an adult...
The history of swimming in the Olympic games prior to the 19th century is obscure, as swimming was primarily a military skill as opposed to a recreational sport. Because it wasn't a sport, individuals were not trained for competing with swimming...
The heart functions as the motor of the circulatory system, which consists of the heart, blood vessels and blood. The heart pumps approximately 2,000 gallons of blood through the body each and every day, according to the American Heart...
Muscles are a fibrous group of tissues that provide contraction, allowing the body to move. Muscles also function in many vital biological processes including the contraction of the heart, the movement of food through the digestive system and the...
The term "muscular system" generally refers to skeletal muscles, which is the group of muscles responsible for moving or positioning your body. Yet, the importance of other types of muscle tissue, such as cardiac and smooth muscle, cannot be...
Cytotoxic drugs are powerful chemotherapy medications used to kill cancerous cells. Different types of cytotoxic drugs interfere with varying cellular activities to induce cell death, with most disrupting some aspect of cell replication. If cancer...
Breast cancer develops when mutated cells within the glandular tissue of the breast begin to proliferate out of control to give rise to unlimited numbers of cancer cells. One standard course of treatment for breast cancer is chemotherapy, using...
Green barley powder is a vegetable protein supplement that can be mixed with water or juice. Several brands of this product are available, with one of the most well-known being BarleyGreen. Derived from organic barley grass, BarleyGreen is also...
The threat posed by cancer centers on the capacity of the cancerous cells to uncontrollably replicate, taking over the space occupied the normal cells. Chemotherapy treatments are drugs that exploit vulnerabilities in cancer cell metabolism with...
Cancer is a leading cause of death worldwide, accounting for about 7 million deaths every year, with an estimated 24 million people living with cancer. In the United States, an estimated 1.4 million new cases are expected for 2009, with well over...
In the U.S., an estimated 1.4 million new cases of cancer are expected for 2009, with well over 500,000 deaths. Cancer is the second leading cause of death. Although there is no cure for many cancer types, there have been steady advances in...
