The heart is the hardest working muscle in the human body and pumps more than 8500 litres of blood every day. The cardiovascular system is made up of the heart, major blood vessels and fine arteries that deliver blood to every part of our body.
The brain is the central processing unit of the body and plays a key role in translating the content of the mind (your thoughts, feelings, attitudes, beliefs, memories and imagination) into complex patterns of nerve cell firing and chemical release. It is responsible for movements of all parts of our bodies, from our first steps to the fine movements of our hands to the smiles on our faces.
The Vital Flow: Blood is a liquid medium that delivers nutrients and oxygen to our cells and transports waste products away from those same cells. It comprises white and red blood cells, platelets and other important clotting factors suspended in plasma.
Cells are the smallest units of life often called the "building blocks of life".
Health care is the maintenance or improvement of health through the prevention, diagnosis and treatment of disease suffered by people of any age. In the past, health care systems tended to focus on the provider, but in recent decades the approach to all management of the person is termed “patient-centered care”, in which the individual, rather than the provider, is the focus whatever the health care setting.
Recognizing and treating disease dates back many millennia. The input of the scientific method – with experiments both in the laboratory and at the bedside – allowed diagnosis and management of various afflictions to gradually improve.
Female reproduction includes the internal and external organs that function in reproduction of new offspring.
This includes the diagnosis of disorders and diseases of the entire urinary tract and the male genital tract.
Our digestive system breaks our food into parts small enough for our body to absorb and be used for energy, growth and cell repair. Just as it handles our daily intake of fluids and solids, it has an important function in eliminating solid waste from our body. The digestive system comprises the mouth, esophagus, stomach, intestines, appendix, liver, pancreas and gallbladder.
The immune system fights infection (microbes) through special organs, cells and chemicals. The immunology of infectious disease studies how the immune system responds to infectious agents and how infectious agents interact with, modify or elude the immune system. More recent developments have shown that immunology may play an important role in the treatment of some cancers. Allergies occur when your immune system reacts to a foreign substance — such as pollen, bee venom or pet dander — or a food that doesn't cause a reaction in most people.