Facts The aortic valve is one of four valves of the heart. De-oxygenated blood enters the right atrium via the vena cava. The heart contracts and pumps the blood through the tricuspid valve into the right ventricle. After another pump of the heart, the blood...

Facts Red blood cells, also called RBCs, are the most common blood cell in the circulatory system. They contain hemoglobin (also spelled haemoglobin), a biomolecule containing iron, that binds to oxygen in the lungs and delivers it to the rest of the body’s cells. Once...

Hormones are chemical messengers that influence the activity of cells and tissues all round the body. The first hormones to be identified were those produced by discrete, visible glands, such as the thyroid and the pituitary. Later, scientists discovered other messengers, including the brain biochemicals...

FactsA dog’s lymph system is a network of lymph nodes and lymphatic vessels that are used to process and circulate disease organisms and foreign substances so that they may be presented to and destroyed by the immune system. Lymphocytes, which are a type of white...

Facts Hemangiosarcoma is a malignant, very aggressive form of cancer that forms anywhere in the body where there is blood supply, but it most usually forms on the skin, in soft tissues, or on the spleen or heart. It develops in the lining of a...

Euthanasia: a release from suffering Euthanasia means voluntarily ending the life of a dog suffering from a terminal or incurable condition. Some instances where Euthansia is likely the best option inlcude:- Irreversible disease that has progressed to a point where distress or discomfort cannot be...

Facts Oral cancer is one cancer that grows and then spreads quickly and is often very hard to treat. In fact, as far as cancer goes, it is one of the most difficult to treat. Tumours found in the mouth are quite common and can...